[PHP] Performance
Is it true that mixing HTML and PHP--switching back and forth with ?php ? tags--slows down performance? (I'm using PHP4.) Is it better to echo output than to drop out of PHP mode? And concerning database connections, my ISP asks that I always close a MySQL connection with a mysql_close()--which I can understand. But I'm curious, if I have to make, say, 10 SELECTs throughout a page (in the header, body, and footer), is it perhaps faster to use the mysql_close() at the very end of the page (in the bottom of the footer.inc)? In other words, is there any disadvantage performance-wise (or stability reason) to open and immediately thereafter close mysql connections? Can anyone recommend an article or two on coding techniques for improving PHP and MySQL performance? I don't wan to spend the rest of my life optimizing my php code, but if I knew a few basic rules about its performance characteristics, I might be able to make better decisions when coding. Thanks. ...Rene --- René Fournier, [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Is PHP up to task?
(Now that I have your attention... :-) Here's the situation: All the navigational buttons in the site I'm working on have three different states (for mousovers--normal, mouseover, onClick). What I don't like: When I mouse over one button, it takes a second or two for the page to fetch the mouseover state of the button from the server. Now, normally, I would just write a preloadimages() function in JavaScript and preload all the button states when the pages load. BUT, this is a little harder, since this is a fairly big site (or will be) and it's not always the same buttons that need to be loaded; they can change from page to page (say, between sections, with subnav bars). That being said, I've kept one thing simple: All the buttons (and their states) are stored in the same directory, and in fact only button images are in that directory (/nav). So here's what I would like to know: Is it possible for PHP to read the contents of a directory--all the files--and then take that array and generate some javascript preload() statements? (Of course, I'm sure it IS possible, but I would appreciate any pointers you might have before I undertake it. Maybe there's even a better way than what I can see!) What I was thinking was to preload all the nav buttons and their states in the header.inc. Thanks. ...Rene --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Is PHP up to task?
What you're saying makes sense--that loading ALL the nav button images for the whole site at once is overkill. In this case, however, it really isn't, since there are just to 'sets' of nav buttons--the top-level set, which needs to be preloaded no matter what page the user is on; and the products subsection set, which SHOULD be preloaded, because every visit will inevitably visit that section (it is the reason why any visits the site). I agree that if there were numerous sub-level 'sets' of nav button images, that loading all of them would be inefficient. ...Rene On Saturday, December 15, 2001, at 02:08 AM, Charles Williams wrote: - Original Message - From: René Fournier [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, December 15, 2001 1:27 AM Subject: [PHP] Is PHP up to task? (Now that I have your attention... :-) Here's the situation: All the navigational buttons in the site I'm working on have three different states (for mousovers--normal, mouseover, onClick). What I don't like: When I mouse over one button, it takes a second or two for the page to fetch the mouseover state of the button from the server. Now, normally, I would just write a preloadimages() function in JavaScript and preload all the button states when the pages load. BUT, this is a little harder, since this is a fairly big site (or will be) and it's not always the same buttons that need to be loaded; they can change from page to page (say, between sections, with subnav bars). That being said, I've kept one thing simple: All the buttons (and their states) are stored in the same directory, and in fact only button images are in that directory (/nav). So here's what I would like to know: Is it possible for PHP to read the contents of a directory--all the files--and then take that array and generate some javascript preload() statements? (Of course, I'm sure it IS possible, but I would appreciate any pointers you might have before I undertake it. Maybe there's even a better way than what I can see!) What I was thinking was to preload all the nav buttons and their states in the header.inc. Thanks. ...Rene Rene, Of course this is possible. However, I doubt if it is desirable. The more visitors to your site the larger the load if you load all the graphics, because each session would have it's own copy of all the graphics. It would be better if you checked the page being loaded and passed a list of the needed graphics needed to a function that would load ONLY those graphics needed for said page. This is not too very difficult and if run on a PHP caching server then the overhead is not so bad. The hard part is getting the JS to work correctly (at least for me. hehe. I suck at JS). For example. http://clans.acnsnet.com is a package I'm working on that uses templates to control the layout. Each menu item is stored in an SQL backend as well as the Template info (location, menu type, state, etc). I already have a function to determine what page is active. So finding out what menu items are visible is simply a matter of comparing the active page to the array of menu items. I can then determin which images I would need to load (depending on the template in use). This way I only load the images that are needed, which saves on load time and memory. Anyway, have fun. chuck -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] OSX Migration Problem
After some trial and [much] error, I finally have the latest version of PHP (4.0.6??) and MySQL running under Mac OSX 10.1.2. And they seem to be working... sort of. The only problem is when I try to load some pages that use the PHP Session ID function. Now, these exact pages--the whole site in fact--is already running without incident on my ISP (FatCow), and has been for a while. So I figure there must be a configuration issue to deal with. In any case, here are the errors when the page loads (and that's also interesting, it does load). If any of you can shed light on this, I would very much appreciate it. Thanks. Warning: Cannot send session cache limiter - headers already sent (output started at /Users/rene/Sites/smartslitters/jupiter/europa/header.inc:6) in /Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 19 Warning: Unable to save MySQL query result in /Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 44 Warning: Supplied argument is not a valid MySQL result resource in /Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 45 --- ...Rene -- René Fournier -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Mac OSX !?!?!?
Can someone PLEASE explain why I get the following error message under OSX (PHP+MySQL), but not under Windows ME or Linux? Warning: Cannot send session cache limiter - headers already sent (output started at /Users/rene/Sites/smartslitters/jupiter/europa/header.inc:6) in /Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 19 Warning: Unable to save MySQL query result in /Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 44 Warning: Supplied argument is not a valid MySQL result resource in /Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 45 --- After these lines, the pages load fine. I'm using PHP Session ID variables (or trying to)--they work fine as I said under other OSes, but now break under OSX. ...Rene --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Mac OSX !?!?!?
Somebody suggested I post the source--good idea! So here it is... The
header.inc file, in its entirety:
html
head
titleSite :: Jupiter :: Europa/title
meta http-equiv=Content-Type content=text/html; charset=iso-8859-1
link rel=stylesheet href=../../common/styles.css type=text/css
?php
// DETERMINE THE LANGUAGE FROM THE PARENT DIRECTORY
// GENERATE VARIABLES FOR LANGUAGE, FILENAME AND NAME
$path = explode(/,$PHP_SELF);
if (!$lang) { $lang = $path[sizeof($path)-2]; }
$file = $path[sizeof($path)-1];
$prename = explode(.,$file);
$name = $prename[sizeof($prename)-2];
// SECURITY CHECK
session_start();
if (!$PHPSESSID) { die;
} elseif (!$auth) { die;
} elseif ($auth != $path[sizeof($path)-2]) { die; }
$language = All Languages;
if ($lang == en) { $language = English; }
if ($lang == fr) { $language = FranÁais; }
if ($lang == es) { $language = EspaÒol; }
if ($lang == de) { $language = Deutsch; }
if ($lang == it) { $language = Italiano; }
$priv = 2;
// CONNECT TO DATABASE
$db = mysql_connect(localhost,database,password);
mysql_select_db(database,$db);
// FETCH TABLE NAMES
$listtables = mysql_list_tables(database,$db);
// FETCH SELECTED TABLE DATA
$fields = mysql_list_fields(database, $table, $db);
$columns = mysql_num_fields($fields);
?
script language=JavaScript
!--
function GP_popupConfirmMsg(msg) { //v1.0
document.MM_returnValue = confirm(msg);
}
//--
/script
/head
body bgcolor=#FF text=#00 link=#00 vlink=#00
alink=#00 leftmargin=20 topmargin=20 marginwidth=0
marginheight=0 background=../../common/bg.gif
?php
if ($language) { echo span class=adminnormalgreya
href=../index.php4Europa/a/span; }
if ($table) { echo span class=adminnormalgrey : /spanspan
class=adminnormalgreya href=tables.php4Tables/a/span; }
?
pnbsp;
On Wednesday, January 16, 2002, at 06:01 PM, Richard Baskett wrote:
Kind of hard to say without source code for the session part..
Although the
MySQL warnings, I got those because MySQL does not automatically start
in
OSX, if you know it's started then Im not sure, but if not.. go here to
get
the autostart utility:
http://www.entropy.ch/software/macosx/mysql/
This link will have information and a link of where you can download the
utility.
Rick
The human mind is not capable of grasping the Universe. We are like a
little child entering a huge library. The walls are covered to the
ceilings
with books in many different tongues. The child knows that someone must
have
written these books. It does not know who or how. It does not
understand the
languages in which they are written. But the child notes a definite
plan in
the arrangement of the books---a mysterious order which it does not
comprehend, but only dimly suspects. - Albert Einstein
From: René Fournier [EMAIL PROTECTED]
Date: Wed, 16 Jan 2002 17:50:06 -0700
To: [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: [PHP] Mac OSX !?!?!?
Can someone PLEASE explain why I get the following error message under
OSX (PHP+MySQL), but not under Windows ME or Linux?
Warning: Cannot send session cache limiter - headers already sent
(output started at
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc:6) in
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 19
Warning: Unable to save MySQL query result in
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 44
Warning: Supplied argument is not a valid MySQL result resource in
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 45
---
After these lines, the pages load fine. I'm using PHP Session ID
variables (or trying to)--they work fine as I said under other OSes,
but
now break under OSX.
...Rene
---
René Fournier
[EMAIL PROTECTED]
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Re: [PHP] Mac OSX !?!?!?
Somebody suggested I post the source--good idea! So here it is... The
header.inc file, in its entirety:
html
head
titleSite :: Jupiter :: Europa/title
meta http-equiv=Content-Type content=text/html; charset=iso-8859-1
link rel=stylesheet href=../../common/styles.css type=text/css
?php
// DETERMINE THE LANGUAGE FROM THE PARENT DIRECTORY
// GENERATE VARIABLES FOR LANGUAGE, FILENAME AND NAME
$path = explode(/,$PHP_SELF);
if (!$lang) { $lang = $path[sizeof($path)-2]; }
$file = $path[sizeof($path)-1];
$prename = explode(.,$file);
$name = $prename[sizeof($prename)-2];
// SECURITY CHECK
session_start();
if (!$PHPSESSID) { die;
} elseif (!$auth) { die;
} elseif ($auth != $path[sizeof($path)-2]) { die; }
$language = All Languages;
if ($lang == en) { $language = English; }
if ($lang == fr) { $language = FranÁais; }
if ($lang == es) { $language = EspaÒol; }
if ($lang == de) { $language = Deutsch; }
if ($lang == it) { $language = Italiano; }
$priv = 2;
// CONNECT TO DATABASE
$db = mysql_connect(localhost,database,password);
mysql_select_db(database,$db);
// FETCH TABLE NAMES
$listtables = mysql_list_tables(database,$db);
// FETCH SELECTED TABLE DATA
$fields = mysql_list_fields(database, $table, $db);
$columns = mysql_num_fields($fields);
?
script language=JavaScript
!--
function GP_popupConfirmMsg(msg) { //v1.0
document.MM_returnValue = confirm(msg);
}
//--
/script
/head
body bgcolor=#FF text=#00 link=#00 vlink=#00
alink=#00 leftmargin=20 topmargin=20 marginwidth=0
marginheight=0 background=../../common/bg.gif
?php
if ($language) { echo span class=adminnormalgreya
href=../index.php4Europa/a/span; }
if ($table) { echo span class=adminnormalgrey : /spanspan
class=adminnormalgreya href=tables.php4Tables/a/span; }
?
pnbsp;
On Wednesday, January 16, 2002, at 06:01 PM, Richard Baskett wrote:
Kind of hard to say without source code for the session part..
Although the
MySQL warnings, I got those because MySQL does not automatically start
in
OSX, if you know it's started then Im not sure, but if not.. go here to
get
the autostart utility:
http://www.entropy.ch/software/macosx/mysql/
This link will have information and a link of where you can download the
utility.
Rick
The human mind is not capable of grasping the Universe. We are like a
little child entering a huge library. The walls are covered to the
ceilings
with books in many different tongues. The child knows that someone must
have
written these books. It does not know who or how. It does not
understand the
languages in which they are written. But the child notes a definite
plan in
the arrangement of the books---a mysterious order which it does not
comprehend, but only dimly suspects. - Albert Einstein
From: René Fournier [EMAIL PROTECTED]
Date: Wed, 16 Jan 2002 17:50:06 -0700
To: [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: [PHP] Mac OSX !?!?!?
Can someone PLEASE explain why I get the following error message under
OSX (PHP+MySQL), but not under Windows ME or Linux?
Warning: Cannot send session cache limiter - headers already sent
(output started at
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc:6) in
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 19
Warning: Unable to save MySQL query result in
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 44
Warning: Supplied argument is not a valid MySQL result resource in
/Users/rene/Sites/smartslitters/jupiter/europa/header.inc on line 45
---
After these lines, the pages load fine. I'm using PHP Session ID
variables (or trying to)--they work fine as I said under other OSes,
but
now break under OSX.
...Rene
---
René Fournier
[EMAIL PROTECTED]
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[EMAIL PROTECTED]
-
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http://lists.mysql.com/ (the list archive)
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To unsubscribe, e-mail mysql-unsubscribe-
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[PHP] Must results from MySQL fetches always be an Array??
This is sort of a is there an easier/better way kind of question. No error or problem, but I'd like to know how others handle it. I'm fetching single elements of data from several tables, then piecing it together. Here's an example of one element I need to fetch: $series = mysql_fetch_array(mysql_query(SELECT key2 FROM models WHERE lang='$lang' AND recordname='$model',$db)); Now I realize that with this function $series will always be an array, even if it contains just one element (which it does). What I'd like to know is, can I write that statement so that $series is created just as a string? (So that I don't have to write $series = $series[0]; immediately afterwards in order to treat $series as a $string.) ...Rene --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Can I be an ASP with PHP?
I have a question to which I'm pretty sure the answer will be no, but I would like to hope I'm wrong... I've developed a very simple Content Management tool--called Europa--that even retarded monkeys can use to change/update text in their web site. It's web-based, user-authenticated (sessions), and runs with PHP4 and MySQL. Now, Europa is pretty much plug and play, so long as the web site is getting its text from a MySQL database. There's a web agency in town that is interested in Europa for their clients. Their clients want to be able to easily and quickly update certain elements of their site without begging some outside webmaster. They would really benefit from Europa. Problem: I don't want to sell Europa, or even install it on someone's web server for a one-time fee. I've spent a long time on this little tool, and want to continue to improve it. So, I would rather license it to companies. They pay a quarterly subscription fee, and get to use Europa as it continues to grow and improve. I'm just a little worried about one thing: If I install Europa on their server, and they pay their paltry quarterly subscription fee, and then decide they don't need any updates, I'm screwed. The value of Europa is much greater than what I want to sell subscriptions to it for (not much--I'm not really greedy), but I need some kind of control. The idea: In order for Joe User to update text on his web site, he comes to my Europa web site, enters his company name, user ID, password, and clicks Login, and--voilà--he sees a handsome list of tables containing the text content of his site--which is pulled from a MySQL database residing on HIS web site's web host. And this is the trick: Can PHP somehow fetch MySQL data over the Internet? Is this possible? If so, is it necessary for me to resort to new, unknown technologies like XML or SOAP, or can I do it with PHP alone? Thanks for your comments. ...Rene --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Convert a grayscale value to a #RRGGBB hex value
Anyone know how I might convert a grayscale value, from between 0 to
100, to hex, such that 0 (black) would be returned as #00, and 100
(white) as #FF? For example...
function grayscaletohex ($val) {
$hex = $val ... [ a simple operation ]
return $hex;
}
Thanks.
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
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[PHP] Convert a grayscale value to a #RRGGBB hex value
Anyone know how I might convert a grayscale value, from between 0 to
100, to hex, such that 0 (black) would be returned as #00, and 100
(white) as #FF? For example...
function grayscaletohex ($val) {
$hex = $val ... [ a simple operation ]
return $hex;
}
Thanks.
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
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[PHP] Annoying syntax problem with RTRIM
echo rtrim($feat,, ); On my local Apache-OSX web server (PHP 4.1.2), this command works fine. (The reason I use it is that sometimes $feat contains a comma and a space at the end of the string, which I want to remove (if it's there) before echoing.) When this same script is run on my ISP (PHP 4.0.6), I get the following error message: bWarning/b: Wrong parameter count for rtrim() in b/u/htdocs/smarts/jupiter/callisto/include/create.inc/b on line b216/bbr Any ideas why? Thanks. ...Rene --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Annoying syntax problem with RTRIM
I did. It didn't help. (That's why I posted this message.) On Thursday, July 4, 2002, at 10:47 AM, Jason Wong wrote: On Friday 05 July 2002 00:41, René Fournier wrote: echo rtrim($feat,, ); On my local Apache-OSX web server (PHP 4.1.2), this command works fine. (The reason I use it is that sometimes $feat contains a comma and a space at the end of the string, which I want to remove (if it's there) before echoing.) When this same script is run on my ISP (PHP 4.0.6), I get the following error message: bWarning/b: Wrong parameter count for rtrim() in b/u/htdocs/smarts/jupiter/callisto/include/create.inc/b on line b216/bbr Any ideas why? RTFM! -- Jason Wong - Gremlins Associates - www.gremlins.com.hk Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* The heart is wiser than the intellect. */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Annoying syntax problem with RTRIM
Actually I did see the 4.1.0, but mis-read it thinking 4.0.1 (I
did read the manual, just not carefully enough. (Thank you, Mr. Wong,
for your helpful reply.))
Anyways, I came up with a workaround until my ISP upgrades PHP:
$str = rtrim($str);
if (substr($str,-1) == ,) { $str = substr($str,0,-1); }
Seems to work okay.
...Rene
On Thursday, July 4, 2002, at 01:45 PM, Paul Roberts wrote:
string rtrim ( string str [, string charlist])
Note: The second parameter was added in PHP 4.1.0
^hint
get them to upgrade php for you.
Paul Roberts
[EMAIL PROTECTED]
- Original Message -
From: René Fournier [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, July 04, 2002 6:00 PM
Subject: Re: [PHP] Annoying syntax problem with RTRIM
I did. It didn't help. (That's why I posted this message.)
On Thursday, July 4, 2002, at 10:47 AM, Jason Wong wrote:
On Friday 05 July 2002 00:41, René Fournier wrote:
echo rtrim($feat,, );
On my local Apache-OSX web server (PHP 4.1.2), this command works
fine.
(The reason I use it is that sometimes $feat contains a comma and a
space at the end of the string, which I want to remove (if it's there)
before echoing.)
When this same script is run on my ISP (PHP 4.0.6), I get the
following
error message:
bWarning/b: Wrong parameter count for rtrim() in
b/u/htdocs/smarts/jupiter/callisto/include/create.inc/b on line
b216/bbr
Any ideas why?
RTFM!
--
Jason Wong - Gremlins Associates - www.gremlins.com.hk
Open Source Software Systems Integrators
* Web Design Hosting * Internet Intranet Applications Development *
/*
The heart is wiser than the intellect.
*/
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
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[PHP] Storing images in MySQL bad idea, performance-wise?
I'm working on a simple content management system that uses PHP and MySQL for updating a web site's text (stored in a MySQL database). (The PHP scripts that do the updating (my stuf) live on one web server, the actual DB data to be updated (my client's stuff) live on another.) So far, I've only had to he able to update the text content of a site--therefore, I've only had to bother to store textual data in the client's DB. But now the client wants to be able to upload/change/delete certain pictures on their web site--using my CMS tool--so I am faced with the following problem: Do I store all such images in the DB? (Which I understand reduces performance.) Or do I--somehow--store the images as files on the client's web server? And if so, how? (Because my PHP scripts are being executed on a different server.) ...Rene --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Images in Mysql
Hi Asaf, Thanks for the advice. That sounds like a good solution. One thing I was wondering about is... when my PHP script saves the uploaded image to the web server, how should the image be named [uniquely]? The problem is that if the user specifes the name of the image file, there's a chance he'll name another one the same way (and thus overwrite the original). I was thinking of maybe a dual approach, where the user gives the image file a name, but then the PHP script appends, say, the table name and record ID--so as to make the filename unique. What do you think? Is that how you do it? (Or is there a better way??) ...Rene On Wednesday, July 10, 2002, at 07:34 AM, Asaf Maruf Ali wrote: Hello Rene We used a similar approach albeit both our PHP scripts and data were on the same server. We however opted to place html links to the images in the MySQL db and actual images (GIF's, JPG's)files on the server harddisk. It works fine with no performance issues. Hope this helps Regards Asaf Maruf PING I'm working on a simple content management system that uses PHP and MySQL for updating a web site's text (stored in a MySQL database). (The PHP scripts that do the updating (my stuf) live on one web server, the actual DB data to be updated (my client's stuff) live on another.) So far, I've only had to he able to update the text content of a site--therefore, I've only had to bother to store textual data in the client's DB. But now the client wants to be able to upload/change/delete certain pictures on their web site--using my CMS tool--so I am faced with the following problem: Do I store all such images in the DB? (Which I understand reduces performance.) Or do I--somehow--store the images as files on the client's web server? And if so, how? (Because my PHP scripts are being executed on a different server.) ...Rene --- René Fournier, [EMAIL PROTECTED] --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.361 / Virus Database: 199 - Release Date: 5/7/02 --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] good article on creating a subscription form/script
I've looked on php.net, phpbuilder.com, and zend.com, but to no avail. Any suggestions? --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] GD Graphics Library
There are several functions in the GD library that I really, really want to be able to use on several sites that I develop/manage. Unfortunately, the ISP I use, FatCow, doesn't have GD, nor seems interested in adding it. Can anyone recommend a good, cheap ISP (like FatCow) that DOES have GD for PHP4? (Or better yet, do you have any suggestions as to how I might persuade FatCow to add it?? ...Rene --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] How to do a dynamic UPDATE SET
I'm having a REALLY hard time with something that's probably easy to do (for someone :-)... Normally, to perform an update on a table with data from a submitted form, I would use something like: $sql = UPDATE $table SET pet='$pet', name='$name' WHERE id=$id; $result = mysql_query($sql); And it would work. Of course, if I wanted to update a different table (with different columns/fields), I would need to only change the SET part of the SQL (since the value for $table is dynamically generated). For example, $sql = UPDATE $table SET car='$car', year='$year' WHERE id=$id; $result = mysql_query($sql); But here's what I want to do now: I want to use the same two lines of code for any possible form data that might be submitted--in other words, I don't want to have to create unique $sql/$result lines for each and every table in my database. I want this .php code to accept whatever number and type of form elements/data submitted, and make the appropropriate SET values. Anyone know how I can do that? I actually have tried several things to pass the form data strcuture (number and names of columns) over to this php code, but haven't been able to get anything working. Can anyone help?? Much thanks if you can.. ...Rene --- Rene Fournier -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] How to do a dynamic UPDATE SET
Nope, still no go. Removing the single quotes stops PHP from updating the
fields with $set's literal $fieldname, but still doesn't update the record
with the value (or anything).
===
CODE
===
if ($submit) {
// if there is an ID, then it's an update
if ($id) {
$comma = ;
for ($i = 1; $i $columns; $i++) {
$fld = mysql_field_name($fields, $i);
$set .= $comma.$fld=$.$fld;
$comma = , ;
}
$set .= ;
echo $set, p;
// run SQL against the DB
$sql = UPDATE events SET what=$what WHERE id=$id;
echo $sql, p;
$result = mysql_query($sql);
}
echo span class=adminnormalRecord updated;
}
===
OUTPUT
===
lang=$lang, record=$record, date=$date, what=$what, link=$link,
location=$location, details=$details
UPDATE events SET lang=$lang, record=$record, date=$date, what=$what,
link=$link, location=$location, details=$details WHERE id=1
Record updated
===
...Rene
---
Rene Fournier
[EMAIL PROTECTED]
-Original Message-
From: Vincent [mailto:[EMAIL PROTECTED]]
Sent: Monday, October 01, 2001 5:49 PM
To: [EMAIL PROTECTED]
Subject: RE: [PHP] How to do a dynamic UPDATE SET
| The result: PHP updates the values of lang, record, date, what
(etc.) to
| [LITERALLY] $lang, $record, $date, etc--NOT the values of those fields
| submitted by the form. I'm kinda lost as to what to do... Any
| suggestions??
Ow yea, little mistake of mine, sorry.
I think removing the single quotes should do the trick.
Vincent
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[PHP] Pesky quotes
A little problem with single quotes messing up an SQL SET statement...
I can type single quotes, double quotes--it seems, any 'special'
character--into a form, and so long as my PHP script tries to INSERT, UPDATE
or DELETE said row into the table, no problem. But when I try to DUPLICATE
a row that already contains a single quote, the PHP code chokes on it--and
doesn't perform the query operation. I realize that the code that does the
preprocessing is getting confused by any stray single quote (double quotes
are harmless). What I don't know is how to get around this problem. Here's
the code in question:
---
// DUPLICATE
if ($action == dup) {
$result = mysql_query(SELECT * FROM $table WHERE id=$id,$db);
$myrow = mysql_fetch_array($result);
$comma = ;
echo $priv, br;
for ($i = $priv; $i $columns; $i++) {
$fld = mysql_field_name($fields, $i);
$set .= $comma.$fld='.$myrow[$i].';
echo $set, br;
$comma = , ;
}
// run SQL against the DB
$sql = INSERT $table SET $set;
$result = mysql_query($sql);
$affected = $id;
echo td width=10img border=0 src=../../common/spacer.gif width=10
height=1/tdtd align=center valign=middle bgcolor=#eespan
class=adminnormalgreyRecord duplicated/span/td;
}
---
And here's the echo'd $set:
---
lang='en'
lang='en', record='news.php'
lang='en', record='news.php', buttonname='News and Events'
lang='en', record='news.php', buttonname='News and Events', pagetitle='What
is Happening'
lang='en', record='news.php', buttonname='News and Events', pagetitle='What
is Happening', alttext='Breaking news on new SmartSlitter products and
upgrades, plus a list of trade show's where we will be exhibiting our
machines.'
---
Any help is much appreciated. Thanks!
...Rene
---
Rene Fournier
[EMAIL PROTECTED]
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[PHP] Should I convert special characters before writing them to a table?
The reason I ask is, I'm having a problem processing rows in a table that
contain single quotes (specifically, the PHP code I wrote that allows the
user to duplicate a row doesn't work if the a field in the row has a single
quote in it).
Would it be better for me to strip out the single quotes before the rows are
written, replacing them with another special [harmless] character, and just
dynamically swapping that character out for the orginal when the row is
displayed? Any thoughts? I just started doing this PHP/MySQL thing a
couple weeks ago, and I realize I have a lot to learn. Any suggestions
would be much appreciated.
Oh, and by the way, here is the PHP code for duplicating rows that fails to
execute when a field in the row it's processing contains a single quote.
=
// DUPLICATE
if ($action == dup) {
$result = mysql_query(SELECT * FROM $table WHERE id=$id,$db);
$myrow = mysql_fetch_array($result);
$comma = ;
for ($i = $priv; $i $columns; $i++) {
$fld = mysql_field_name($fields, $i);
$set .= $comma.$fld='.$myrow[$i].';
$comma = , ;
}
// run SQL against the DB
$sql = INSERT $table SET $set;
$result = mysql_query($sql);
$affected = $id;
echo td width=10img border=0 src=../../common/spacer.gif width=10
height=1/tdtd align=center valign=middle bgcolor=#eespan
class=adminnormalgreyRecord duplicated/span/td;
}
=
Thanks.
...Rene
---
Rene Fournier
[EMAIL PROTECTED]
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[PHP] array to string
Just trying to convert an array to string before writing the whole thing back out to a file. (Trying to do a simple database-less database, using text files). $fcontents = file($name..db); // THE ENTIRE TABLE $fcontents[$update] = $updatedstring; // THE ROW TO BE UPDATED $fp = fopen($name..db, w+); But before the next line, I need to convert $fcontents to a string, else just Array gets written to the text file. I just can't seem to find the sure-to-be simple command to do this on php.net or phpbuilder.com, etc. Any ideas? fwrite($fp,$fcontents); fclose($fp); Thanks. ...Rene --- Rene Fournier [EMAIL PROTECTED] _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] SIMPLE, secure user authentication
I'm looking for a good (simple) tutorial on user authentication. I want to create a login system that's secure, but I don't need all the features that PHPBuilder's A Complete, Secure User Login System scripts provide. (I don't need the the user to be able to register or confirm his account, change his email or password, etc.) Basically, I can/will set the usernames and passwords myself via MySQL. All I want the login system to do is securely check against the db and then create a session. That's the other problem. I'm a little confused about this cookie creation/session stuff. Am I correct in assuming that the way it works is that I should wrap every bit of PHP code around a isUserAuthenticated() function? I suppose what I need is a general tutorial on authentication, assuming the user of cookies, PHP4 and MySql. Any ideas?? (Thanks.) ...Rene --- Rene Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Best [non-PHP] way to redirect a browser
This is really I guess a non-PHP question, so please excuse... What is the most reliable, browser-safe way to redirect the browser from a default index.html to, say, index.php? The I'm doing it now is with the following javascript: script type=text/javascript language=Javascript document.location=index.php /script And it works, but I wanted to know if any of you are using a better [more compatible] way of redirecting the browser (say, if it doesn't have JavaScript (!?)). ...Rene --- Rene Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Fatcow and MySQL-Front
Hi All, Little problem: I want to transfer my MySQL database--a collection of 10 or so tables, with data--to my Fatcow account. They provide some lame MySQL tools, but nothing to faciliate moving an existing database, full of data, to their server. I tried using MySQL-Front to connect to their server, but it was rejected for some reason (their tech support acknowledged that MySQL-Front doesn't work with Fatcow (?)). Can anyone recommend a way for me to get my database and data onto Fatcow? I have asked their Tech Support, but they weren't very supportive... Much appreciated. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Fatcow and MySQL-Front
Sorry, stupid question, but how do I load phpMyAdmin onto Fatcow? Won't that be as time-consuming as recreating all the tables in my database by hand, using their lame tools? (If there is an easy way, please let me know. Thanks.) ...Rene -Original Message- From: Nikola Karoviæ [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 30, 2001 1:34 AM To: best list in da whole world Subject: Re: [PHP] Fatcow and MySQL-Front Hi, can't you do that with phpMyAdmin. If you dont have that on fatcow, you can put it your self and then load a database file. - volim popit, volim zagalamit - Original Message - From: René Fournier [EMAIL PROTECTED] To: Php-General [EMAIL PROTECTED] Sent: 30. listopad 2001 00:04 Subject: [PHP] Fatcow and MySQL-Front Hi All, Little problem: I want to transfer my MySQL database--a collection of 10 or so tables, with data--to my Fatcow account. They provide some lame MySQL tools, but nothing to faciliate moving an existing database, full of data, to their server. I tried using MySQL-Front to connect to their server, but it was rejected for some reason (their tech support acknowledged that MySQL-Front doesn't work with Fatcow (?)). Can anyone recommend a way for me to get my database and data onto Fatcow? I have asked their Tech Support, but they weren't very supportive... Much appreciated. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Weird caching problem with PHP4/Apache
Having successfully uploaded my PHP4+MySQL site finally to Fatcow (and the MySQL stuff IS there--thanks for the help), I'm now left with making it actually work online. One curious problem: For every page in the site (*.php4), I include three parts, a header.inc (common to all), a body.inc (unique to each .php4 file), and a footer.inc (common to all). One of the things the header.inc file does is generate select a background image randomly. Very simple, and it works on my local machine. But as soon as I look at the page online, it seems Fatcow (Apache/Zend?)caches the header.inc file--that is, the results of the php script inside it, which generates the random background. I say this because no matter how many pages I look at, refreshing them, etc., I always get sent the same original background image. Even if I replace now the random background image function in header.inc with the explicit name of a different file, it STILL displays the same one. Weird? Is there some way to ensure that each PHP4 file/script is interpreted every single time, and not cached (as it seems)?? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Re: Weird caching problem with PHP4/Apache
Thanks for the help, but I'm afraid it hasn't solved the caching problem, at
least not with respect to the PHP random function... It's not as if the
entire page get's cached, since there is an SQL query that selects a random
row from a table--and that is random. But the PHP part of it--that is,
where the background image of a table row is randomly selected--is static.
Refreshing doesn't help, nor does this code, which I put in my header.inc
file:
?php
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT');// Date in the past
header ('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
// always modified
header ('Cache-Control: no-cache, must-revalidate'); // HTTP/1.1
header ('Pragma: no-cache'); // HTTP/1.0
?html
head
titleMy Site/title
META HTTP-EQUIV=Expires CONTENT=0
meta http-equiv=Content-Type content=text/html; charset=iso-8859-1
link rel=stylesheet href=../common/styles.css type=text/css
script language=JavaScript
!--
You'll notice that I've got both that header function AND a meta tag, each
of which should tell Apache not to cache, but here's what I think is
happening: Apache is NOT caching, since the SQL select statements are
running randomly. I think the cache problem is with PHP/Zend, since I'm
using PHP4. So... Is there a way to force PHP to reexecute every time
without configuring the server differently (since I can't)??
-Original Message-
From: Julio Nobrega Trabalhando
[mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 30, 2001 9:31 AM
To: [EMAIL PROTECTED]
Subject: [PHP] Re: Weird caching problem with PHP4/Apache
These lines will do what you asked, but I am unsure if they will resolve
your problem (since I don't know Fatcow and how they configured
the server).
Anyway, here it is:
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT');// Date in the past
header ('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
// always modified
header ('Cache-Control: no-cache, must-revalidate'); // HTTP/1.1
header ('Pragma: no-cache'); // HTTP/1.0
PS: Got it from the manual, header(); function :-)
Check the online comments if any problems happen, since there are many
various flavors of servers and clients...
--
Julio Nobrega
A hora está chegando:
http://toca.sourceforge.net
René fournier [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Having successfully uploaded my PHP4+MySQL site finally to
Fatcow (and the
MySQL stuff IS there--thanks for the help), I'm now left with making it
actually work online. One curious problem:
For every page in the site (*.php4), I include three parts, a
header.inc
(common to all), a body.inc (unique to each .php4 file), and a
footer.inc
(common to all). One of the things the header.inc file does is generate
select a background image randomly. Very simple, and it works
on my local
machine. But as soon as I look at the page online, it seems Fatcow
(Apache/Zend?)caches the header.inc file--that is, the results
of the php
script inside it, which generates the random background. I say this
because
no matter how many pages I look at, refreshing them, etc., I always get
sent
the same original background image. Even if I replace now the random
background image function in header.inc with the explicit name of a
different file, it STILL displays the same one. Weird? Is
there some way
to ensure that each PHP4 file/script is interpreted every
single time, and
not cached (as it seems)??
...Rene
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RE: [PHP] Re: Weird caching problem with PHP4/Apache -- THE SAGA CONTINUES
Here's what I've got, starting at the top...
==
?php
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT');// Date in the past
header ('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
// always modified
header ('Cache-Control: no-cache, must-revalidate'); // HTTP/1.1
header ('Pragma: no-cache'); // HTTP/1.0
?html
head
titleTitle/title
META HTTP-EQUIV=Expires CONTENT=0
meta http-equiv=Content-Type content=text/html; charset=iso-8859-1
[SNIP]
?php
function randbg() {
$num_of_bgs = 5;
$the_one = rand(1,$num_of_bgs);
echo bg.$the_one..jpg;
}
?
[SNIP]
td valign=top align=left background=../common/images/bg/?php randbg(); ?
==
Here's why I think it's PHP4: If I look at these pages on my local machine
(WinME, Apache 1.3.20, PHP4.06 module, MySQL 3.23.14 (not that it matters,
right?)), the randbg() function works as it should--I get a random
background image everytime. But if I look at these EXACT SAME pages on
Fatcow (Linux/Apache, I believe, PHP4...), the randbg() function executes
the first time, then [seemingly] fails to execute again--it never generates
a different, random bakground. (Or maybe I'm looking at one hell of a
coincidence :-)
So my question is, who is caching what, where?
...Rene
-Original Message-
From: Tamas Arpad [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 31, 2001 7:24 AM
To: René Fournier; Hugh Danaher
Cc: Php-General
Subject: Re: [PHP] Re: Weird caching problem with PHP4/Apache
On Wednesday 31 October 2001 14:48, René Fournier wrote:
Nope, unfortunately, nothing. It's a really weird problem. It's
like the PHP function I wrote for generating the random image will
only work the first time.
I think it is not php that caches it. As I undertsand you wrote a
script that generates an image, and give it back to the browser in an
img src=... html tag. Am I right?
I hope I am, so I continue :))
Images can be cached in many places (proxies, browser), but
definietly not in php. Your script that generates in the image and
should be called every time by the img html tag, won't ever called
again if the previous image were stored somewhere. You should send
pragma no-cache and other http headers (many posts were on this
cache headers topic) from the script that generates and gives back
the image.
Or another sollution is that you can call your script with a random
number or better with the current date and time, so you images's name
won't be the same, and caches can't give back the old image.
for example:
?php echoimg src=\generatebackground.php?x=.date(YmdHis).
\;?
Arpi
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RE: [PHP] Re: Weird caching problem with PHP4/Apache -- THE SAGA CONTINUES
Yes! That's it! I added that srand function, and it works great. Thanks!
..Rene
-Original Message-
From: Tamas Arpad [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 31, 2001 10:58 AM
To: René Fournier
Cc: Php-General
Subject: Re: [PHP] Re: Weird caching problem with PHP4/Apache -- THE
SAGA CONTINUES
On Wednesday 31 October 2001 18:18, René Fournier wrote:
Here's what I've got, starting at the top...
==
?php
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT');// Date in
the past header ('Last-Modified: ' . gmdate('D, d M Y H:i:s') . '
GMT'); // always modified header ('Cache-Control: no-cache,
must-revalidate'); // HTTP/1.1 header ('Pragma: no-cache');
// HTTP/1.0 ?html
head
titleTitle/title
META HTTP-EQUIV=Expires CONTENT=0
meta http-equiv=Content-Type content=text/html;
charset=iso-8859-1
[SNIP]
?php
function randbg() {
$num_of_bgs = 5;
$the_one = rand(1,$num_of_bgs);
echo bg.$the_one..jpg;
}
?
[SNIP]
td valign=top align=left background=../common/images/bg/?php
randbg(); ? ==
Ah, so you have bg1.jpg, bg2.jpg and so on till 5.
And want to show one of them selected by a random value?
So when you click on browser's refresh button, what happens?
You always get the same page as before with for example bg1.jpg?
Do you seed the random number generator (srand()) before you use
rand() function?
Arpi
Here's why I think it's PHP4: If I look at these pages on my local
machine (WinME, Apache 1.3.20, PHP4.06 module, MySQL 3.23.14 (not
that it matters, right?)), the randbg() function works as it
should--I get a random background image everytime. But if I look
at these EXACT SAME pages on Fatcow (Linux/Apache, I believe,
PHP4...), the randbg() function executes the first time, then
[seemingly] fails to execute again--it never generates a different,
random bakground. (Or maybe I'm looking at one hell of a
coincidence :-)
So my question is, who is caching what, where?
...Rene
-Original Message-
From: Tamas Arpad [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 31, 2001 7:24 AM
To: René Fournier; Hugh Danaher
Cc: Php-General
Subject: Re: [PHP] Re: Weird caching problem with PHP4/Apache
On Wednesday 31 October 2001 14:48, René Fournier wrote:
Nope, unfortunately, nothing. It's a really weird problem.
It's like the PHP function I wrote for generating the random
image will only work the first time.
I think it is not php that caches it. As I undertsand you wrote a
script that generates an image, and give it back to the browser
in an img src=... html tag. Am I right?
I hope I am, so I continue :))
Images can be cached in many places (proxies, browser), but
definietly not in php. Your script that generates in the image
and should be called every time by the img html tag, won't ever
called again if the previous image were stored somewhere. You
should send pragma no-cache and other http headers (many posts
were on this cache headers topic) from the script that
generates and gives back the image.
Or another sollution is that you can call your script with a
random number or better with the current date and time, so you
images's name won't be the same, and caches can't give back the
old image. for example:
?php echoimg src=\generatebackground.php?x=.date(YmdHis).
\;?
Arpi
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[PHP] Array HELP PLEASE
(Before you write RTFM, please know that I have checked www.php.net,
zend.com, phpbuilder.com, et all, and--in the eternal words of Bono--I still
haven't found what I'm looking.)
The situation: I extract an array from a MySQL table. Code:
$models = mysql_fetch_array(mysql_query(SELECT * FROM models WHERE
lang='$lang' AND key1='data' AND key2='$series',$db));
Based on the above criteria, there should be two rows in $modelsrow, with
each row containing about twenty elements. (A two-dimensional array,
right?) All I want to do is display the contents of $models. With the
following...
for ($i = 1; $i = 20; $i++) {
echo $models[$i].p;
}
...I get just one row. How can I also display the other row? I've tried
variations of $models[1][2], but I just can't get right syntax. (Help is
much appreciated. Thanks.)
If you know of a good tutorial on multidimension arrays + mySQL, that would
be nice too.
...Rene
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RE: [PHP] Array HELP PLEASE
Oops, guess I posted too soon. Just figured out the problem myself (use a
do/while...). Thanks anyways.
-Original Message-
From: René Fournier [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 08, 2001 3:25 PM
To: Php-General
Subject: [PHP] Array HELP PLEASE
(Before you write RTFM, please know that I have checked www.php.net,
zend.com, phpbuilder.com, et all, and--in the eternal words of
Bono--I still
haven't found what I'm looking.)
The situation: I extract an array from a MySQL table. Code:
$models = mysql_fetch_array(mysql_query(SELECT * FROM models WHERE
lang='$lang' AND key1='data' AND key2='$series',$db));
Based on the above criteria, there should be two rows in $modelsrow, with
each row containing about twenty elements. (A two-dimensional array,
right?) All I want to do is display the contents of $models. With the
following...
for ($i = 1; $i = 20; $i++) {
echo $models[$i].p;
}
...I get just one row. How can I also display the other row? I've tried
variations of $models[1][2], but I just can't get right syntax. (Help is
much appreciated. Thanks.)
If you know of a good tutorial on multidimension arrays + mySQL,
that would
be nice too.
...Rene
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RE: [PHP] Array HELP PLEASE
Or maybe not. :-) Although I got both rows displaying, they're actually two
long to fit comfortably (w/o horizontally scrolling). So... I'd like to
flip the axis of the table, so my header row runs vertically. But with the
vagaries of html tables, I'm kinda stumped as to how to run the do/while+for
loop. This is what I've got now (more or less):
fld1fld2fld3
big red house
little bluedog
longyellow string
With this code:
===
// MODELS A
echo table border=1 cellpadding=2 cellspacing=0;
echo tr;
for ($i = 6; $i = 25; $i++) {
echo td valign=top align=left
class=deemph.stripslashes($modelsheader[$i])./td;
}
echo /tr;
do {
echo tr;
for ($i = 6; $i = 25; $i++) {
echo td valign=top align=left
class=normal.stripslashes($models[$i])./td;
}
echo /tr;
} while ($models = mysql_fetch_array($result));
echo /table;
=
This is what I WOULD LIKE to have:
fld1big little long
fld2red blueyellow
fld3house dog string
==
I can't figure how I would display element 1 of $modelsheader and every
first element of $models, then increment and loop... That is, I would like
to be able to refer to $models such that $models[0][0] referred to the first
element of the first row and, say, $models[1][0] referred to the first
element of the second row, and so on.
-Original Message-
From: René Fournier [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 08, 2001 3:39 PM
To: Php-General
Subject: RE: [PHP] Array HELP PLEASE
Oops, guess I posted too soon. Just figured out the problem myself (use a
do/while...). Thanks anyways.
-Original Message-
From: René Fournier [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 08, 2001 3:25 PM
To: Php-General
Subject: [PHP] Array HELP PLEASE
(Before you write RTFM, please know that I have checked www.php.net,
zend.com, phpbuilder.com, et all, and--in the eternal words of
Bono--I still
haven't found what I'm looking.)
The situation: I extract an array from a MySQL table. Code:
$models = mysql_fetch_array(mysql_query(SELECT * FROM models WHERE
lang='$lang' AND key1='data' AND key2='$series',$db));
Based on the above criteria, there should be two rows in
$modelsrow, with
each row containing about twenty elements. (A two-dimensional array,
right?) All I want to do is display the contents of $models. With the
following...
for ($i = 1; $i = 20; $i++) {
echo $models[$i].p;
}
...I get just one row. How can I also display the other row?
I've tried
variations of $models[1][2], but I just can't get right syntax.
(Help is
much appreciated. Thanks.)
If you know of a good tutorial on multidimension arrays + mySQL,
that would
be nice too.
...Rene
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[PHP] How to set file extension php Mac OSX and PHP 4.0.6
I have successfully installed PHP 4.0.6, and it works! Only problem is that Apache only sends files to the PHP module that have a .php extension. However, I need to name the files .php4 (long story). As it stands, all I see is the actual PHP source, not the output. Does anyone know how I can change Apache and/or the PHP module to recognize .php4 files and execute them as such? Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] How to set file extension php Mac OSX and PHP 4.0.6
OK, that makes sense--that's what I did under WinME. The only problem is that I can't seem to find the httpd.conf file anywhere. At least, Sherlock is not returning any results. Do you know which directory httpd.conf is in? ...Rene On Sunday, December 2, 2001, at 01:56 PM, Michael B. Weiner wrote: modify the apache configuration file (i.e. httpd.conf) and add it as and AddType, as in the following: AddType application/x-httpd-php .php4 .php3 .phtml .php AddType application/x-httpd-php-source .phps HTH -- René Fournier wrote: I have successfully installed PHP 4.0.6, and it works! Only problem is that Apache only sends files to the PHP module that have a .php extension. However, I need to name the files .php4 (long story). As it stands, all I see is the actual PHP source, not the output. Does anyone know how I can change Apache and/or the PHP module to recognize .php4 files and execute them as such? Thanks. ...Rene -- Michael B. Weiner, Linux+, Linux+ SME Systems Administrator/Partner The UserFriendly Network (UFN) -- Linux Registered User #94900 Have you been counted? http://counter.li.org PGP: 30 1D CC BA 30 30 63 35 CD 58 E0 89 A9 17 CC C0 8C 55 F7 72 .Escape the 'Gates' of Hell `:::' ... .. ::: * `::.::' ::: .:: .:.::. .:: .:: `::. :' ::: :: :: :: :: :::::. ::: .::. .:: ::. `. .:' ::. ...:::.::' ... -- --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] sizeof($array) with a twist
I'd like to count the number of rows in a 2 dimensional array that have the same data in their fifth field. Is there a PHP function that does this? Sizeof() appears to lack condition parameters... ...Rene --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Re: MySQL ORDER BY or PHP Sort? Oops.
From: René Fournier [EMAIL PROTECTED]
Date: Mon Dec 03, 2001 06:11:23 PM US/Mountain
To: Benjamin Pflugmann [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED] [EMAIL PROTECTED]
Subject: Re: MySQL ORDER BY or PHP Sort? Oops.
Here is the snippet of code that is presenting a challenge:
---
?php
// FETCH MODELS TECH SPECS
function models ($lang,$db) {
$modelsheader = mysql_fetch_array(mysql_query(SELECT * FROM models
WHERE lang='$lang' AND key1='header',$db));
$result = mysql_query(SELECT * FROM models WHERE key1='data' ORDER
BY price ASC,$db);
mysql_close();
include ('../common/models.inc');
}
models($lang,$db);
// CREATE A MULTI-DIMENSIONAL MODELS ARRAYS BASED ON THE NUMBER OF MODEL
ROWS IN THE TABLE
$i = 0;
do {
$allmodels[$i] = $models;
$i++;
} while ($models = mysql_fetch_array($result));
// NUMBER OF MODELS
$first = 1;
$last = sizeof($allmodels)-1;
$colspan = ($last * 2)+1;
?
---
The problem is, if I sort by the price field, the ordering of the series
gets mixed up (since low-end models in higher-end series cost more than
some higher-end models in lower-end series (confused?? I am :-) If I
just sort by series, I don't get the prices in order within each series
(big problem). And if I sort by BOTH series and price, which is the
logical thing to do, and which many people have kindly suggested (and
which I have tried), well, it doesn't work, because the series must be
sorted in a non-alphabetical way.
I've looked at PHP's myriad sorting functions, and well--maybe I need
more sun (I live in Canada... winter...)--I can't see a 'simple' way to
do a non-numerical, non-alphabetical (user-defined?) sort on the Series
fields, then subsort each series by price.
Many thanks for all the help, fellas.
...Rene
On Monday, December 3, 2001, at 05:31 PM, Benjamin Pflugmann wrote:
Hi.
Because you said, Rene, that you already know how to sort according to
one of both criteria, I presume ordering the series column is not the
problem (e.g. because it is an enum or something alike).
Then the solution would simply be to do something like
SELECT * FROM my_table WHERE ... ORDER BY series, price
I.e. simply list the order criteria which work seperately in the ORDER
BY clause. If this is not appliable, please elaborate.
Btw, it is *much* easier to help if you had quoted a (partial) working
query (which include table and column names and so on). Also, how the
series are stored would have been of interest, because this will
influence how the ordering is specified.
Also, I do not understand why you put emphasis on the fact that the
series is sorted in an unusual way if you later say that you already
know how to order by it?! Is this relevant to the problem at all?
Bye,
Benjamin.
On Tue, Dec 04, 2001 at 12:36:34AM +0200, [EMAIL PROTECTED] wrote:
Well I think mysql doesnt allow you to do this that simple as mysql
doesnt know how you want to sort it exactly. So my suggestion would be to
give a value to each series, eg. Baby = 1,
Genesis=2,Super=3,Predator=4,Millennium=5 and then order by series.
Cheers
Siim Einfeldt
One more thing, very important: I want to specify the Series sort order,
not alphabetically, but by a non-obvious way
(BabyGenesisSuperPredatorMillennium)...
--
I want to select about 25 rows from a table, and sort them by two
criteria. First, by each row's Series field (Baby, Genesis, Super,
Predator, Millennium are the various Series, and the order I'd like
the rows in the array). Within each Series, I'd like the rows sorted by
their Price field, ascending. For example:
Baby $5
Baby $10
Baby $15
Genesis $20
Genesis $35
Genesis $50
...and so on.
Now, I know how to structure my MySQL Select statment such that the rows
it pulls from the table will be either sorted by Price OR by Series, but
not both, in the way I'd like. Does anyone know if it's possibly to do
this in the Select statement itself? (I'd rather do it that way, than
resort in PHP.)
Thanks!
...Rene
[...]
--
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-
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http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
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Re: [PHP] Re: MySQL ORDER BY or PHP Sort? Oops.
You know, in spite of all the good advice I've received, I think that's
what I'll have to do. I say have to because inserting another field
into the table creates some complications (long story... related to the
web admin tool I made for editing the tables). Actually, come to think
of it, there is an existing field that I could reuse for this purpose.
Yes, that will work!
Thanks everyone!
...Rene
On Monday, December 3, 2001, at 06:49 PM, Martin Towell wrote:
can you have another field in your table(s) for a weighting and then
sort
on that?
otherwise you'll have to use php
-Original Message-
From: René Fournier [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 04, 2001 12:16 PM
To: Benjamin Pflugmann; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [PHP] Re: MySQL ORDER BY or PHP Sort? Oops.
From: René Fournier [EMAIL PROTECTED]
Date: Mon Dec 03, 2001 06:11:23 PM US/Mountain
To: Benjamin Pflugmann [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED] [EMAIL PROTECTED]
Subject: Re: MySQL ORDER BY or PHP Sort? Oops.
Here is the snippet of code that is presenting a challenge:
---
?php
// FETCH MODELS TECH SPECS
function models ($lang,$db) {
$modelsheader = mysql_fetch_array(mysql_query(SELECT * FROM models
WHERE lang='$lang' AND key1='header',$db));
$result = mysql_query(SELECT * FROM models WHERE key1='data' ORDER
BY price ASC,$db);
mysql_close();
include ('../common/models.inc');
}
models($lang,$db);
// CREATE A MULTI-DIMENSIONAL MODELS ARRAYS BASED ON THE NUMBER OF MODEL
ROWS IN THE TABLE
$i = 0;
do {
$allmodels[$i] = $models;
$i++;
} while ($models = mysql_fetch_array($result));
// NUMBER OF MODELS
$first = 1;
$last = sizeof($allmodels)-1;
$colspan = ($last * 2)+1;
?
---
The problem is, if I sort by the price field, the ordering of the series
gets mixed up (since low-end models in higher-end series cost more than
some higher-end models in lower-end series (confused?? I am :-) If I
just sort by series, I don't get the prices in order within each series
(big problem). And if I sort by BOTH series and price, which is the
logical thing to do, and which many people have kindly suggested (and
which I have tried), well, it doesn't work, because the series must be
sorted in a non-alphabetical way.
I've looked at PHP's myriad sorting functions, and well--maybe I need
more sun (I live in Canada... winter...)--I can't see a 'simple' way to
do a non-numerical, non-alphabetical (user-defined?) sort on the Series
fields, then subsort each series by price.
Many thanks for all the help, fellas.
...Rene
On Monday, December 3, 2001, at 05:31 PM, Benjamin Pflugmann wrote:
Hi.
Because you said, Rene, that you already know how to sort according to
one of both criteria, I presume ordering the series column is not the
problem (e.g. because it is an enum or something alike).
Then the solution would simply be to do something like
SELECT * FROM my_table WHERE ... ORDER BY series, price
I.e. simply list the order criteria which work seperately in the ORDER
BY clause. If this is not appliable, please elaborate.
Btw, it is *much* easier to help if you had quoted a (partial) working
query (which include table and column names and so on). Also, how the
series are stored would have been of interest, because this will
influence how the ordering is specified.
Also, I do not understand why you put emphasis on the fact that the
series is sorted in an unusual way if you later say that you already
know how to order by it?! Is this relevant to the problem at all?
Bye,
Benjamin.
On Tue, Dec 04, 2001 at 12:36:34AM +0200, [EMAIL PROTECTED] wrote:
Well I think mysql doesnt allow you to do this that simple as mysql
doesnt know how you want to sort it exactly. So my suggestion would be
to
give a value to each series, eg. Baby = 1,
Genesis=2,Super=3,Predator=4,Millennium=5 and then order by series.
Cheers
Siim Einfeldt
One more thing, very important: I want to specify the Series sort order,
not alphabetically, but by a non-obvious way
(BabyGenesisSuperPredatorMillennium)...
--
I want to select about 25 rows from a table, and sort them by two
criteria. First, by each row's Series field (Baby, Genesis, Super,
Predator, Millennium are the various Series, and the order I'd like
the rows in the array). Within each Series, I'd like the rows sorted by
their Price field, ascending. For example:
Baby $5
Baby $10
Baby $15
Genesis $20
Genesis $35
Genesis $50
...and so on.
Now, I know how to structure my MySQL Select statment such that the rows
it pulls from the table will be either sorted by Price OR by Series, but
not both, in the way I'd like. Does anyone know if it's possibly to do
this in the Select statement itself? (I'd rather do it that way, than
resort in PHP.)
Thanks
[PHP] Mac OSX and MySQL
The migration continues... Now I have to get my mysql database running under MySQL 3.23.46 on OSX 10.1.1. I've dumped the structure and contents of the database (on Windows) into a text file, and now I'd like to recreate it in the new enivronment. I think I can use the mysql admin tools via command line (but really, what is the syntax for piping a 'dumped' database into a new database? mysqladmin create database dumpeddb.sql??), but one question about users... I have to create a MySQL for my PHP scripts. How do I do this in Mac OSX? There are a bunch of command line tools, but I'm not sure which one[s] to use. Thanks. ...Rene --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Re: Mac OSX and MySQL
I have to create a MySQL for my PHP scripts. How do I do this in Mac OSX? There are a bunch of command line tools, but I'm not sure which one[s] to use. Not sure I understand this question. What do you mean by create a MySQL for my PHP? oops, I meant to write create a MySQL user for my PHP scripts. In other words, when my scripts try to connect to the database, they need to supply a user id and password (and that must be certain id/pwd to correspond with the 'real' online server we're using). So I would like to know how to create this user/password under Mac OSX. (Thanks.) Thanks. ...Rene Hope this helps, /Rob ~ Robert Alexander, Alpha Geek, Workmate.ca WWW Database Applications and Web Hosting http://www.workmate.ca 416-823-6599 mailto:[EMAIL PROTECTED] Life's unfair - but root password helps! - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Dumped OK, Restore NOT
Little problem with MySQL 3.23.46 under Windows ME. I'm trying to create a database from an .sql file (the dumped remains of a functioning database--also MySQL). The dumping was easy, but I'm having a problem putting it back. I have a dumped file called smarts.sql that starts this way: - # MySQL dump 8.14 # # Host: localhostDatabase: smarts # # Server version3.23.38 # # Table structure for table 'about' # CREATE TABLE about ( id smallint(5) unsigned NOT NULL auto_increment, lang char(2) default NULL, recordname varchar(40) default NULL, key1 tinytext, key2 tinytext, status varchar(10) default NULL, title tinytext, par1 tinytext, PRIMARY KEY (id) ) TYPE=MyISAM; # # Dumping data for table 'about' # INSERT INTO about VALUES (1,'en','about' ---(and so on) This is what I'm doing to try to recreate the database locally: 1. I type mysqladmin create smarts OK--I see a new directory called smarts (no files in it) 2. I type mysql smarts smarts.sql It pauses for a few seconds (seeming to input the file), then returns the DOS prompt with no message, error or otherwise. Seems to have worked, right? But when I check the 'smarts' database directory, there are no files in it. (Incidentally mysqld is running.) What am I doing wrong?? ...Rene --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Dumped OK, Restore NOT
That's why I cross-posted there as well. But I've found that posting to the mysql list doesn't help, more often than not--perhaps fewer subscribers. Anyways, if any PHP people here are--god forbid--actually using MySQL as their database, I would GREATLY appreciate any help in this matter. I've thoroughly read the mysqldump chapter in the docs, and gone through several tutorials, but have found nothing on actually restoring a database from a dumped file--ON Windows. On Wednesday, December 5, 2001, at 09:49 AM, Kurt Lieber wrote: On Wednesday 05 December 2001 08:02 am, you wrote: Little problem with MySQL 3.23.46 under Windows ME. I This would be an excellent question for the MySQL mailing list. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Dumped OK, Restore NOT
You know, I tried that, it it STILL didn't work. Then, after remembering to reboot my brain, I took a look at the smarts.sql that my ISP kindly dumped for me, to see what code/statements it might be missing--and lo and behold!--it didn't have a USE database; statement! Adding this one wee line made all the difference in the world. Your suggestions(s) work; I can now restore my database locally. Thanks everyone for your help and patience! (And my apologies for posting off-topic oh PHP--I've been suitably chastised, and will remember to name the subject OT: next time I feel tempted to ignore netiquette.) ...Rene On Wednesday, December 5, 2001, at 10:56 AM, Ernesto wrote: You should try: mysql -u username -p password database dump.sql Example: mysql -u joe -p mypass smarts smarts.sql René Fournier wrote: Little problem with MySQL 3.23.46 under Windows ME. I'm trying to create a database from an .sql file (the dumped remains of a functioning database--also MySQL). The dumping was easy, but I'm having a problem putting it back. I have a dumped file called smarts.sql that starts this way: - # MySQL dump 8.14 # # Host: localhostDatabase: smarts # # Server version3.23.38 # # Table structure for table 'about' # CREATE TABLE about ( id smallint(5) unsigned NOT NULL auto_increment, lang char(2) default NULL, recordname varchar(40) default NULL, key1 tinytext, key2 tinytext, status varchar(10) default NULL, title tinytext, par1 tinytext, PRIMARY KEY (id) ) TYPE=MyISAM; # # Dumping data for table 'about' # INSERT INTO about VALUES (1,'en','about' ---(and so on) This is what I'm doing to try to recreate the database locally: 1. I type mysqladmin create smarts OK--I see a new directory called smarts (no files in it) 2. I type mysql smarts smarts.sql It pauses for a few seconds (seeming to input the file), then returns the DOS prompt with no message, error or otherwise. Seems to have worked, right? But when I check the 'smarts' database directory, there are no files in it. (Incidentally mysqld is running.) What am I doing wrong?? ...Rene --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Performance
That certainly makes sense on one level, but I think it really comes down to the question, what is more compute intensive--echoing the HTML while in PHP mode, or context-switching to HTML and back again to PHP? (It could be that the difference, if any, is negligible--but I'd like to at least know BEFORE I write 100 million lines of otherwise perfect code :-) ...Rene On Thursday, December 13, 2001, at 10:26 AM, Nathan Cassano wrote: I have always assumed straight html was faster than function output. My logic being that quoted output requires more parsing than straight html. But they may be the same speed after a simple optimization pass. -Original Message- From: René Fournier [mailto:[EMAIL PROTECTED]] Sent: Tuesday, November 13, 2001 9:05 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: [PHP] Performance Is it true that mixing HTML and PHP--switching back and forth with ?php ? tags--slows down performance? (I'm using PHP4.) Is it better to echo output than to drop out of PHP mode? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] --- René Fournier [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Command-line PHP script CPU usage goes sky-high, stays there--why?
Hello, I have a command-line PHP script--called Listener--that is designed to run indefinitely with a predictable CPU usage and memory footprint. In a nutshell, it's a multi-client socket server that waits for incoming connections, processes incoming data, stores results in a MySQL database, and basically gets on with its life. And it works. No errors or serious problems to speak of. And I've been running it for a couple years on an Xserve dual-G5 2GHz w/ OS X Server 10.4.11). Six months ago, the program would run for days, even a couple weeks, without a hitch. The only reason I would stop the script is for some other purpose, like a software update. However, the number of socket clients connecting in the past 3-4 months has steadily increased, and this seems to have exposed (if not created) a strange performance issue with PHP 5.2.4, MySQL 5.0.45 and/or Mac OS X Server 10.4.11. (I say and/or because I am unsure where the problem's cause really lies.) Basically, after the script has been running for a day or so (processing essentially the amount data that used to take two weeks), the CPU usage of the machine goes from 30% (normal) to 80-90%. This appears to be irrespective of the number of clients connected to the server at the time, but rather the amount of time the script has been running (and therefore cumulative cycles it's operated, data processed, MySQL queries executed, etc.). And the CPU usage stays high, even when the actual load (number of clients) decreases. At this time, if I run top, I get the following info: 22512 mysqld 91.6% 8:22:12 31 106 125 305M+ 3.20M 260M 475M 17104 php 7.2% 81:14.01 115 145 5.08M 7.80M 10.9M- 87.5M 22537 Terminal 6.6% 2:59:59 22 176 240 12.3M 21.2M 18.3M- 236M [...] At first I thought, okay, it's MySQL's fault. Maybe a lot of slow- running queries. But the slow query log is pretty clean. So maybe it's a combination of Mac OS X and MySQL and PHP? I Googled for a similar problem, and finally ran across this article: http://www.shawnhogan.com/2005/10/mysql-problems-on-mac-os-x-server.html ...where the author describes a very similar CPU usage pattern. I tried his suggested fixes and they seemed to have helped a little (or maybe it's my wishful thinking--hard to tell), since the high CPU load issue doesn't appear to happen as soon... But it still happens. Anyway, I'm really stumped as to what to do next, where to look, etc. If I stop the script, and restart it (but not the MySQL itself), CPU usage goes back to normal--for about a day or two. The only thing I thought might be connected is how many short-lived PHP child processes Listener creates--around 20-30,000 per day. Sounds higher, but on average it's just one every 2-3 seconds. Anyway, although the number of child processes isn't concurrent, would there be a problem with the number of historical child processes in view of ulimits or kern.maxfilesperproc? Anyway suggestions, tips, or links are much appreciated. Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Command-line PHP script CPU usage goes sky-high, stays there--why?
Hi Jim, I have a server that listens like yours does. I get 80k - 85k connections a day to it. When I first started it, I was only getting about 3k of connections aday. Then I upped the listening pattern and it tanked. I noticed that all my mail/web/db connections just sat there. When I investigated, I found that the number of connections to the server was being overloaded. So I increased the kern.maxfilesperproc setting to 32000. All the problems went away. I have about have the horse power you do, running OpenBSD 4.1, and it runs great now as my listener / web / ftp / mail / named / database / spam filter / etc... One question about the listener program, does it maintain a connection to the DB or does it open/close a connection upon each socket connection? If it does the latter, you might look into using a constant connection rather then opening/closing on a per connection basis. Thanks for the reply. (Not many people seem to be doing what I'm doing in the way I'm doing it... so I really appreciate the feedback.) I don't think the kern.maxfilesperproc setting is a problem. I'm currently set to 102400 per Shawn Hogan's advice. And my Listener program only receives ~1000 connections per day. However, each connection involves multiple MySQL queries, often as many as 50 or so per connection each day. So perhaps your second observation applies. MySQL is showing ~ 1,500 connections per hour. And I'm using mysql_connect() in Listener. I will see if using mysql_pconnect(), and reducing the number of connections helps. My.cnf's max connections, presently at 100, may have been too low in view using mysql_connect(). If mysql_pconnect() doesn't improve things, maybe I should bump up max_connections to 500? ..Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Command-line PHP script CPU usage goes sky-high, stays there--why?
On 10-Dec-07, at 4:42 PM, Tom Rogers wrote: Put a usleep(1000) in the listen while() loop and give the cpu a break. Good advice, but I've already been doing that. The thing is, when the script first starts up, the CPU rarely exceeds 30%, even when many clients (200+) are simultaneously connected and sending data. When a few clients are connected, CPU is typically below 10%. Again, it's only after 24-48 hours that, all of a sudden, CPU usage increases by 40-50%. And it stays high until I stop the script and restart it. One question I have though is, is there actually any benefit to using mysql_pconnect(), since the script simply loops? My understanding is that pconnect only benefits if a script would otherwise be using mysql_connect repeatedly--and this script doesn't, since it calls mysql_[p]connect() just once, in the start tof execution. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Command-line PHP script CPU usage goes sky-high, stays there--why?
On 10-Dec-07, at 5:20 PM, Jim Lucas wrote:
Tom Rogers wrote:
Hi,
Tuesday, December 11, 2007, 6:42:18 AM, you wrote:
RF Hello,
Put a usleep(1000) in the listen while() loop and give the cpu a
break.
This makes me think about asking if you have to short of a timeout
on your receiving connection?
One second on stream_socket_server(), with a 900 second timeout
stream_socket_accept().
What are you using to setup your connection? fsockopen() or
stream_socket_server() ?
here is a snippet of what I have
[...]
Thanks for sharing your code. Seems pretty similar to mine at first
glance.
I don't have a timeout set on the *_recvfrom() call. I just wait
until the next connection comes in.
You don't need to use mysql_pconnect(), especially if you are
using, what in essence is, a daemon.
Yeah, after thinking about it, that's what I figured. Thanks for
confirming though.
Just don't open and close the connection constantly, leave it open.
Yes, I just open it once at the top of the script. And that's it.
Also, make sure you are not using an array that you are not re-
initializing through each iteration
of the loop. If the array keeps getting bigger, PHP might $*% on
itself. Always re-initialize
arrays to clean them up.
Hope some of this helps!
All good advice. I will check my arrays, although I don't think this
is a problem since I monitor the scripts memory usage with
memory_get_usage() and memory_get_peak_usage(), and it never tops 3MB
(max allocated is 16MB). There are a few little parts to the daemon.
One thing I'm doing that could be problematic is running an include
(); on a couple files each time a socket has new data (this allows me
to adjust the processing logic on the fly without having to start the
script and wait for clients to reconnect)--but I can see this being
expensive in terms of performance and resources. Actually, I wonder
if THAT is not what's starving the script of resources over time--
each fread() involves several includes(); I'll have to look into that...
FWIW, here's the stripped-down skeleton of the server:
As always, constructive criticism is very welcome.
?php
$socket = stream_socket_server(tcp://127.0.0.1:9876, $errno, $errstr);
if ($socket) {
$master[] = $socket;
$read = $master;
$write = $master;
while (1) {
$read = $master;
$write = $master;
$mod_fd = stream_select($read, $_w = NULL, $_e = NULL, 1);
if ($mod_fd === FALSE) {
break;
}
for ($i = 0; $i $mod_fd; ++$i) {
if ($read[$i] === $socket) {// NEW SOCKET
$conn = stream_socket_accept($socket, 900);
$master[] = $conn;
$key_num = array_search($conn, $master, TRUE);
} else {
$sock_data = fread($read[$i], 32768);
if (strlen($sock_data) === 0) { //
CONNECTION GONE
$key_to_del = array_search($read[$i],
$master, TRUE);
fclose($read[$i]);
unset($master[$key_to_del]);
} elseif ($sock_data === FALSE) {
// CONNECTION BROKEN
$key_to_del = array_search($read[$i],
$master, TRUE);
fclose($read[$i]);
unset($master[$key_to_del]);
} else {
// READ INCOMING DATA
// include (somefiles);
// include (somefiles);
// include (somefiles);
// [ ... ]
}
}
}
}
}
?
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Re: [PHP] Command-line PHP script CPU usage goes sky-high, stays there--why?
That makes sense, but I'm not sure I really want to do this, since it's fairly important that Listener continue listening without interruption. I also don't think it's probably necessary, since from what I read, I'm not really pushing the envelope in terms of real load. Right now, I might have max ~250 clients connected, each sending 5-20 kb / day of data. It's not much data, nor many concurrent connections. If Jim's Listener handles 80-85k connections per day, then mine should be able to do 250 concurrently easily, and 2000 cumulative per day without a hitch. Did I mention, I'm on Mac OS X Server 10.4.11? Shouldn't matter, but anyway. On 10-Dec-07, at 5:48 PM, Jochem Maas wrote: Jim Lucas wrote: Tom Rogers wrote: Hi, ... Also, make sure you are not using an array that you are not re- initializing through each iteration of the loop. If the array keeps getting bigger, PHP might $*% on itself. Always re-initialize arrays to clean them up. even then he may still have creeping memory ... in which it might be possible to have a mother process that spawns and watchs a child process .. the child process is the actual deamon, the child could then keep a track of it's own memory usage and then kill itself when it gets too big ... the mother in turn would automatically spawn a new child deamon process upon seeing it's child has committed suicide. does that make sense? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Bug in stream_socket_server()?
If you want a high speed socket server, use the low-level sockets instead (socket_create/bind/listen). The stream_socket_server version appears to have internal fixed 8k buffers that will overflow if you don't keep up by reading. This is a serious problem if you an application that reads the socket for messages and then, say, saves the result in a database. The delay while it is busy processing means you can't read the data in time unless you get involved in muti-threading. With the the low-level functions, the OS quietly buffers TCP/IP packets so there is no problem (tested on Windows XP Professional). ( http://php.oregonstate.edu/manual/en/function.stream-socket- server.php#67837 ) Has anyone confirmed this? I am doing tests with a stripped-down multi-client socket server, wonder if this issue is causing some of the problems I've seen. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Pushing the limits of stream_socket_server() and stream_select()
Just curious what people found the limits to be with stream_socket_server(), in terms of maximum concurrent connections, packet sizes, etc. I'm am presently stress-testing a multi-client socket server and am finding I can sometimes break it with as few as 100 concurrent connections, and always break it with [precisely] 252 connections--with a variety of errors getting thrown: Client-side (100 connections, sometimes): PHP Warning: stream_socket_client(): unable to connect to tcp:// 192.168.0.41: (Operation timed out) in /Tuning/client.php on line 3 PHP Notice: fwrite(): send of 68 bytes failed with errno=32 Broken pipe in /Tuning/client.php on line 14 Server-side error ( 252+ connections, every time): PHP Warning: stream_select(): supplied argument is not a valid stream resource in /Tuning/server.php on line 15 Interestingly, the above server-side error only occurs when 252 clients are connected. At 251, it's okay. At 252, it generates the above PHP Warning. (Which really is strange. Anyone have any ideas?) If anyone is interested, I will post the sample code I'm using, in case--perish the thought--the problem is self-inflicted. :-) ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Pushing the limits of stream_socket_server() and stream_select()
On 11-Dec-07, at 4:32 PM, René Fournier wrote: Just curious what people found the limits to be with stream_socket_server(), in terms of maximum concurrent connections, packet sizes, etc. I'm am presently stress-testing a multi-client socket server and am finding I can sometimes break it with as few as 100 concurrent connections, and always break it with [precisely] 252 connections--with a variety of errors getting thrown: Client-side (100 connections, sometimes): PHP Warning: stream_socket_client(): unable to connect to tcp:// 192.168.0.41: (Operation timed out) in /Tuning/client.php on line 3 PHP Notice: fwrite(): send of 68 bytes failed with errno=32 Broken pipe in /Tuning/client.php on line 14 Server-side error ( 252+ connections, every time): PHP Warning: stream_select(): supplied argument is not a valid stream resource in /Tuning/server.php on line 15 Interestingly, this 251 connection limit does not appear to be obviously system-related (I am running Mac OS X 10.4.11). I can run two instances of server.php and have each client.php spawn 175 connections (350 total concurrent to the machine), with no problem. Interestingly, the above server-side error only occurs when 252 clients are connected. At 251, it's okay. At 252, it generates the above PHP Warning. (Which really is strange. Anyone have any ideas?) If anyone is interested, I will post the sample code I'm using, in case--perish the thought--the problem is self-inflicted. :-) ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Mac OS X Server limits... was [PHP] Pushing the limits of stream_socket_server() and stream_select()
OK, having done more digging, this bizarre 251-255 connections per socket limit seems to be an OS X thing. (Linux people, any comments?) At least that's I've read: http://www.macgeekery.com/tips/ configuration/mac_os_x_network_tuning_guide_revisited#comment-1433 So... Do any Mac OS X gurus out there know how to increase OS X Server's (10.4.11) maximum connections per socket value? There seems to no such setting in sysctl or ulimit. Any ideas? Anyone? Anyone? ...Rene On 11-Dec-07, at 4:55 PM, René Fournier wrote: On 11-Dec-07, at 4:32 PM, René Fournier wrote: Just curious what people found the limits to be with stream_socket_server(), in terms of maximum concurrent connections, packet sizes, etc. I'm am presently stress-testing a multi-client socket server and am finding I can sometimes break it with as few as 100 concurrent connections, and always break it with [precisely] 252 connections--with a variety of errors getting thrown: Client-side (100 connections, sometimes): PHP Warning: stream_socket_client(): unable to connect to tcp:// 192.168.0.41: (Operation timed out) in /Tuning/client.php on line 3 PHP Notice: fwrite(): send of 68 bytes failed with errno=32 Broken pipe in /Tuning/client.php on line 14 Server-side error ( 252+ connections, every time): PHP Warning: stream_select(): supplied argument is not a valid stream resource in /Tuning/server.php on line 15 Interestingly, this 251 connection limit does not appear to be obviously system-related (I am running Mac OS X 10.4.11). I can run two instances of server.php and have each client.php spawn 175 connections (350 total concurrent to the machine), with no problem. Interestingly, the above server-side error only occurs when 252 clients are connected. At 251, it's okay. At 252, it generates the above PHP Warning. (Which really is strange. Anyone have any ideas?) If anyone is interested, I will post the sample code I'm using, in case--perish the thought--the problem is self-inflicted. :-) ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Command-line PHP script CPU usage goes sky-high, stays there--why?
On 11-Dec-07, at 2:13 PM, Per Jessen wrote: René Fournier wrote: However, the number of socket clients connecting in the past 3-4 months has steadily increased, and this seems to have exposed (if not created) a strange performance issue with PHP 5.2.4, MySQL 5.0.45 and/or Mac OS X Server 10.4.11. (I say and/or because I am unsure where the problem's cause really lies.) Basically, after the script has been running for a day or so (processing essentially the amount data that used to take two weeks), the CPU usage of the machine goes from 30% (normal) to 80-90%. Have you tried stracing it to see what's really happening when the load goes that high? Good advice, since I think there's nothing left for me to do but inspect the MySQL process. Incidentally, I've made some changes to the script a week ago, which has seemed to improve the situation somewhat. Now, the script has run for nearly 7 days without interruption or high CPU load. Problem solved? Again this morning, I noticed CPU went up to 90% and is staying there. (Previously, this would happen after 1-2 days.) The number of distinct MySQL connections remains low, since the script (which runs in a loop, with a sleep(1) and a timeout on the stream_socket_select()), only creates one MySQL connection in the beginning. All MySQL queries run through that. The script has run for 6-7 days, during which time it's executed 2.7 million queries (mostly SELECTs) and created 105,198 external, short- lived child processes (each lasts about a second or two, then closes after mysql_close())--I don't think this is an issue. Memory usage seems okay. By the end of 7 days, the script's memory usage has peaked at 4MB (out of 16MB max). Typically it's around 3MB. MySQL memory usage doesn't seem to be a constraint. I'm using my- huge.cnf, and the nature of the queries is fairly regular. I would say that the database structure is not an issue (though I could be wrong!)--everything is pretty well normalized and indexed. I'm logging slow queries, non-indexed SELECTs, etc. I'm really not sure what to try next. ps -aux shows MySQL as hogging the CPU, not PHP or Terminal: PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE 342 mysqld 83.3% 16:13:19 33 125 139 435M 4.75M 439M 539M 385 Terminal 4.7% 5:36:35 22 184 251 20.1M 33.5M 28.8M+ 256M 1190 php 4.3% 3:13:33 1 15 148 6.51M 8.15M 12.1M 89.0M 0 kernel_tas 1.3% 2:02:40 47 2 619 5.00M- 0B 219M- 1.26G- It's really strange and strangely consistent. The script will run for a few million cycles, whereupon MySQL suddenly uses 50% more CPU. But for what? I'm looking at tutorials on ktrace and kdump to see what I can learn from MySQL. I wonder if I would have this problem under Linux... ...Rene
[PHP] Got a makestringsafe_for_filename() function?
I imagine some of you have written a nice little function for taking an arbitrary user-input string, and sanitizing and cleaning it for us as a UNIX (Mac OSX) filename... Would you mind sharing it? Thanks. René --- René Fournier www.renefournier.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] array_search() with preg_match?
I need to search an array for a string, with a twist. E.g.:
$array = array(0 = 'this sky is blue', 1 = 'pencils are orange', 2 =
'I like green apples', 3 = 'strawberries are red');
$key = array_search('green', $array);
With the above code, nothing will be returned, but I would like it to
return 2 for the key containing green. Any suggestions?
...René
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[PHP] Accessing data posted from a different URL
I have a script that periodically sends an email that includes form post to a script, which is meant to do something with the posted data. My problem is that apparently some PHP security measure is not permitting the externally posted data to be access via $_POST. I assume this is due to cross-site scripting issues, but in this case, I want to do just that. Any ideas? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Accessing data posted from a different URL
Hmm, perhaps I didn't explain clearly. To put it another: 1. A script sends an email to a user with sign-in details. 2. The user clicks a [submit] button in the email message called Quick Sign In 3. A web browsers opens to http://www.website.com/signin.php (from the form method=post action=http://www.website.com/sign.php; in the email) 4. Signin.php looks for $_POST[signindetails] and auto-fills the form. Except the form post is not posting signindetails... On 20-Mar-06, at 2:57 PM, Jay Blanchard wrote: [snip] I have a script that periodically sends an email that includes form post to a script, which is meant to do something with the posted data. My problem is that apparently some PHP security measure is not permitting the externally posted data to be access via $_POST. I assume this is due to cross-site scripting issues, but in this case, I want to do just that. Any ideas? [/snip] http://www.php.net/curl -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Accessing data posted from a different URL
On 20-Mar-06, at 3:05 PM, Jay Blanchard wrote: [snip] Hmm, perhaps I didn't explain clearly. To put it another: 1. A script sends an email to a user with sign-in details. 2. The user clicks a [submit] button in the email message called Quick Sign In 3. A web browsers opens to http://www.website.com/signin.php (from the form method=post action=http://www.website.com/sign.php; in the email) 4. Signin.php looks for $_POST[signindetails] and auto-fills the form. Except the form post is not posting signindetails... [/snip] Have you tried print_r($_POST) ? Yes. And to answer a few other questions: The script, the email, the server—everything is on the same computer, running on top of the same Apache/PHP installation (v 4.3.11). The form is essentially: form method=POST target=SI action=http:// www.website.cominput type=hidden name=signindetails value=serialized and htmlentitized array values...input type=submit name=submit value=Fill/form I've narrowed it down a little farther: 1. If I copy the form from the email into the destination php page (ProcessSignin.php), and click Submit, it works—I get can see the $_POST[signindetails] 2. If I copy the form from the email into the original php page (MakeandSendSignin.php), and click Submit (with action=ProcessSignIn.php), it works—I can see the $_POST [signindetails] 3. ONLY if I click the Submit FROM the email—email client Mac OS X Mail.app or Outlook Excell—does it fail. The destination php page (ProcessSignin.php) appears, but print_r($_POST) reveals no $_POST [signindetails]. So, it appears that the email clients are stripping the POST data on Submit. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Accessing data posted from a different URL
On 20-Mar-06, at 4:40 PM, Richard Lynch wrote: On Mon, March 20, 2006 5:04 pm, René Fournier wrote: form method=POST target=SI action=http:// www.website.cominput type=hidden name=signindetails value=serialized and htmlentitized array values...input What does this value actually look like? How long is it? Is mail wrapping it to 72 characters with a newline, thereby breaking the data up? Though you would still get some POST data, just not what you thought... Actually, neither the form, nor the data seems to matter. I've copied in simple forms from elsewhere, and the only determining factor so far is: If the form is submitted from a web browser, the POSTed data IS available/visible (print_r) in the new web page. If the form--that is, any form--is submitted from an email client (any email client), the POSTed data IS NOT available/visible in the new web page. So... I can think of three explanations: 1. The email client (Mail or Outlook Express) is stripping the POST data on Submit. 2. The web browser (Safari, Firefox) is stripping incoming POST data if it's coming from outside the application. 3. PHP somehow knows if the form data is being POSTed from inside the web browser or not (and fails on the latter). Weird. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Multi-threaded port listener
Anyone find any good tutorials, code samples, etc. on such a thing? Basically, I want to write server (in PHP) that listeners on a particular port, and spins off a thread/process (essentially, execute a separate script) for each incoming connection. There won't be a lot of data to process, but there will be many simultaneous connections— upwards of 1000s of connections (each spun off as seperate threads). ...Rene
[PHP] Possible?
Simple problem: Many client apps need to send data to a server. By default each client will open a persistent TCP socket connection to a common IP address:port (10.10.10.10:1234) and write to it (which the server will save/log, etc.). My question is, what should be ready to listen at the IP:port? I was thinking of writing a PHP command-line socket server that listens at that port. But there will be a potentially huge number of clients connecting simultaneously (1000s), not transmitting a lot of data per se, but a lot of connections... Anyway, instead I thought writing a simple PHP script—say, listener.php—that gets executed by the web server and enters a socket_read loop until the client terminates the connection (set_time_limit(0)). Does this sound like a good way to do it? This way, Apache handles all the connections, and PHP is instantiated each time, but without having to fork processes, etc, and without having to do PHP CLI. Anyway, I've started looking at this, but I'm not quite sure if it's even possible. I mean, can something send a request to Apache, and continue to write data along that TCP socket? Normally, HTTP requests include GET or POST for such data, but this is not a a web browser that's opening the connection. Hope I'm somewhat clear. Just struggling through some options here Anyway, thanks in advance for any suggestions. ...Rene
Re: [PHP] Possible?
Anyway, I've started looking at this, but I'm not quite sure if it's even possible. I mean, can something send a request to Apache, and continue to write data along that TCP socket? Normally, HTTP requests include GET or POST for such data, but this is not a a web browser that's opening the connection. Hope I'm somewhat clear. Just struggling through some options here Anyway, thanks in advance for any suggestions. ...Rene each client will open a persistent TCP socket connection to a common IP address:port (10.10.10.10:1234) (If you want simultaneous connections, each TCP connection will be to a different port.) Well, not if the client (actually, it's a pre-programmed physical device) is set to always open a socket connection to 10.10.10.10:1234... right? But rather than write a client and a server application from scratch, why not just use HTTP POSTs? I'm not writing the client, I just need to make a server that can accept numerous simultaneous incoming socket connections, and maintain them. Maybe stream_select() as someone suggested? I suppose my question would be, can a single PHP socket server script, executed from the command-line, maintain 1000s of concurrent connections (there is not a lot of data incoming, btw)? ...Rene
[PHP] PHPMailer inserting unwanted spaces
Has anyone encountered this? I am composing an HTML email with PHPMailer, and for some reason PHPMailer is inserted spaces periodically, which breaks the formatting. I've looked through the docs, but can only find a setting for Word Wrap (which is set to 0). ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHPMailer inserting unwanted spaces
Actually, I can send the example messages but here is another description of the same problem. (So PHPMailer is inserting line breaks, not spaces—or something is...) http://sourceforge.net/tracker/index.php? func=detailaid=1267539group_id=26031atid=385708 On 30-Dec-05, at 5:37 AM, Lam Cheuk Hin wrote: Can You Write The Strings/Text? On 12/30/05, René Fournier [EMAIL PROTECTED] wrote: Has anyone encountered this? I am composing an HTML email with PHPMailer, and for some reason PHPMailer is inserted spaces periodically, which breaks the formatting. I've looked through the docs, but can only find a setting for Word Wrap (which is set to 0). ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- lch2003 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] String format best practice
I need to output a Hex value, e.g.: 686E8AF8 In the following format: 68 6E 8A F8 In other words, separated by spaces. Now I realize there are a million ways to do this, but I would like a suggestion on which you think is the most efficient? Incidentally, I'm starting with a decimal value (23602210718), so maybe sprintf would be a direct way? ...Rene Best regards, René Fournier --- René Fournier GPS Police.NET 31, 1339 - 40th Ave NE Calgary, AB T2E 8N6 Canada Tel +1 (403) 250. Fax +1 (403) 291-2997 www.gpspolice.net -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Sprintf?
I need to go from 1754210747 (decimal) to 17 54 21 a7 47 (hex per character) Basically, reformat the string for each character, converting it to Hex, and spacing after each two characters. Sprintf? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Create MDB File
Coincidentally, I also need a way to read a table from MySQL and write it out to an .MDB file on-the-fly (from within a PHP script). The CSV export idea isn't an option in this case. Has anyone found a way to create an MDB file (with a single table) from PHP? ...Rene On 28-Mar-05, at 7:18 PM, Rory Browne wrote: MDB suggests Access, so why not simply create a CSV, or some other generic format file from your MySQL, and import it into access, using COM/OLE, and save it as an MDB file. On Mon, 28 Mar 2005 22:14:07 +0100, Shaun [EMAIL PROTECTED] wrote: Thanks for your reply, but this only works on Windows. I need a program that will create an MDB file on the fly from a query on the MySQL database... Johannes Findeisen [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Sorry, i forgot that link: http://www.convert-in.com/sql2acc.htm On Monday 28 March 2005 22:46, Johannes Findeisen wrote: Hello, i had the same problem some years ago. At this time i have set up all tables in Access and wrote a script which reads from MySQL and inserts into the MDB file via the ODBC connector. This works but is much work when your database is very big. 2 Years ago i had the same problem but it must go as fast as possible so i decided to buy a converteer since i didn't find anything free. They are working very good. I don't know where i have buyed them but i think there is only one company which delivers this software. Regards Johannes On Monday 28 March 2005 22:08, Shaun wrote: Hi, Does anyone know if its possible to create an MDB file from a Mysql database using a PHP script, I have only managed to find Access to Mysql conversion programs so far... Thanks for your help -- # Johannes Findeisen -- # Johannes Findeisen -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Can this code go faster?
I've looked in the docs and don't see anything for this per se...
I need to convert a binary number of arbitrary length to a signed
integer.
This is how I'm doing it now:
CODE
function bin2int ($bin) {
if (substr($bin,0,1) == 1) {
$val = 0 - bindec(substr($bin,1)); // NEGATIVE
} else {
$val = bindec(substr($bin,1)); // POSITIVE
}
}
echo bin2int(1101).'br /';
echo bin2int(10001101);
OUTPUT
13
-13
As you can see, if the most-significant bit is 1, then the rest of the
value is negative. If the first bit is 0, then the rest is positive. Is
there a better, faster (execution-wise) way of doing this? Maybe a more
built-in function of PHP I missed? It's something that my script will
be doing thousands of times, so I am concerned about speed.
Thanks!
...Rene
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[PHP] PHP cli on Mac OSX
Hello, I installed Entropy package of PHP on my 10.2.6 OSX (http://www2.entropy.ch/download/Entropy-PHP-4.3.2-5.dmg), which states that it includes PHP command line. But when I go to Terminal and type PHP somescript.php4, it returns Command not found. What am I missing? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Sockets tutorial problem in Mac OSX
Hello,
I'm just getting my feet wet with a Dev Shed sockets tutorial
(http://www.devshed.com/Server_Side/PHP/SocketProgramming/page5.html).
I am having a little problem with one of the tutorial code samples,
which should socket_write some text back to the client--except it's not
doing that. Here's the snippet:
// write a welcome message to the client
$welcome = Roll up, roll up, to the greatest show on earth!\n? ;
socket_write($spawn, $welcome, strlen ($welcome)) or die(Could not send
connect string\n);
// keep looping and looking for client input
do
{
// read client input
$input = socket_read($spawn, 1024, 1) or die(Could not read input\n);
if (trim($input) != )
{
echo Received input: $input\n;
// if client requests session end
if (trim($input) == END)
{
// close the child socket
// break out of loop
socket_close($spawn);
break;
}
// otherwise...
else
{
// reverse client input and send back
$output = strrev($input) . \n;
socket_write($spawn, $output . ? , strlen (($output)+2)) or die(Could
not write output\n);
echo Sent output: . trim($output) . \n;
}
}
} while (true);
And the output to the Telnet client:
[Valhalla:~] rene% telnet 192.168.0.77 1234
Trying 192.168.0.77...
Connected to 192.168.0.77.
Escape character is '^]'.
Roll up, roll up, to the greatest show on earth!
? Hello, this is a test.
END
Connection closed by foreign host.
[Valhalla:~] rene%
Server output:
% /usr/local/php/bin/php -q socket3.php4
Waiting for connections...
Received connection request
Received input: Hello, this is a test.
Sent output: .tset a si siht ,olleH
Received input: END
Socket terminated
This is almost exactly the same code as that used in the very first
example, with the obvious addition of debug messages and a do-while
loop [Valhalla:~] rene%
According to the tutorial, the client should see the string reversed,
but that's not happening... In the previous tutorial example it did
reverse and output to the client, and the code looks identical, save
for the do...while loop. Here's what the tutorial says should happen:
Here's the output of a sample session:
$ telnet 192.168.1.99 1234
Trying 192.168.1.99...
Connected to medusa.
Escape character is '^]'.
Roll up, roll up, to the greatest show on earth!
? Look Ma...all backwards
sdrawkcab lla...aM kooL
? jack frost
tsorf kcaj
? END
Connection closed by foreign host.
And here are the corresponding debug messages generated on the server:
$ /usr/local/bin/php -q server.php
Waiting for connections...
Received connection request
Received input: Look Ma...all backwards
Sent output: sdrawkcab lla...aM kooL
Received input: jack frost
Sent output: tsorf kcaj
Received input: END
Socket terminated
Any ideas?
...Rene
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[PHP] Yet another socket question...
Is it normal for a socket server to output all the echo'd messages only after the socket terminates? According to the source code, I would think that during its execution any echo text; commands would output to Terminal, but in practice (at least under Mac OSX), it's only after the Socket terminates that those messages appear. Is this normal? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Yet another socket question...
On Thursday, July 31, 2003, at 02:45 PM, Chris Shiflett wrote: --- René_Fournier [EMAIL PROTECTED] wrote: Is it normal for a socket server to output all the echo'd messages only after the socket terminates? Can you explain what situation you're trying to describe? For example, echo does not write to a socket, so there's more going on than you're telling us. I know, but I'm not talking about writing to the socket, just echoing to the local Server command line. I would expect the echo'd text to appear in the server terminal window as the script runs--but it only appears when the server terminates. Here's the code: ? set_time_limit (0); $host = 192.168.0.77; $port = 1234; $socket = socket_create(AF_INET, SOCK_STREAM, 0) or die(Could not create socket\n); $result = socket_bind($socket, $host, $port) or die(Could not bind to socket\n); $result = socket_listen($socket, 3) or die(Could not set up socket listener\n); echo Waiting for connections...\n; $spawn = socket_accept($socket) or die(Could not accept incoming connection\n); echo Received connection request\n; $welcome = Welcome!\n ; socket_write($spawn, $welcome, strlen ($welcome)) or die(Could not send connect string\n); $input = socket_read($spawn, 1024) or die(Could not read input\n); socket_write($spawn, strrev($input), strlen ($input)) or die(Could not send\n); socket_close($spawn); socket_close($socket); echo Socket terminated\n; ? (Now I start the server:) [Valhalla:~] rene% /usr/local/php/bin/php socket5.php4 (In another terminal window:) [Valhalla:~] rene% telnet 192.168.0.77 1234 Trying 192.168.0.77... Connected to 192.168.0.77. Escape character is '^]'. Welcome! (Now, even though the server is running and a socket is connected, the server window does not echo Waiting for connections) In the client window, I type: Hello world dlrow olleHConnection closed by foreign host. [Valhalla:~] rene% (Now something happens in the server window:) [Valhalla:~] rene% /usr/local/php/bin/php socket5.php4 Waiting for connections... Received connection request Socket terminated [Valhalla:~] rene% (But when you look at the source code, shouldn't the Waiting for connections display as soon as the server is running, or at least when I try to telnet to it? Why would it wait until terminated??) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] The stupidest question of the month.
(Okay, now you're prepared...) I need to write a little program that opens and maintains a TCP socket connection to a server across the Internet. This little program would wait for messages from the server it's connected to, then record those messages and send a kinda of acknowledgment Got it. I've written a fair amount of PHP scripts for web sites, but nothing that would run in the background, independently say of a web browser or server. In other words, I don't really know what I'm doing, or where to start. I've looked at PHP.net's socket docs, but everything seems to scream experimental, use at own risk, etc. This little program, while operationally simple, needs to be very reliable. For example, if the socket connection dies for some reason, it would know to open a new one. Or if the server doesn't acknowledge my little program's periodic Hey, you still there-type pings, it would close the connection and reopen a new one. (In fact, at the end of this message I'll list the basic operation and flow of the little program as stated by the company running the server to which I would connect.) In any case, what I want to know is, can this be done with PHP on a run-of-the-mill PHP-savvy ISP? Or would I need something more configurable? Would I need to learn C and compile a UNIX program to do this? Any ideas where to start? Resources, links? Anything would be much appreciated Thanks very much in advance. Here is how the little program should function, according to the Company: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- The following describes the basic operation and flow needed within the DC: Setup and open tcp socket using IP address and port number13 Send a Password_DS to the DS Send a Resend_DS to the DS Enter infinite loop: Wait for messages from the DS Upon receipt of a Send_DS from the DS Store message contents appropriately Send a Send_DS_Ack to the DS Send message contents to other CSP applications Upon receipt of a Ping_DS Respond with a Ping_DS_Ack Upon receipt of a Status_DS Respond with a Status_DS_Ack If needed, send message to other CSP process(es) Periodically, send a Ping_DS to the DS If the Ping_DS transmit fails Clean-up and restart the socket connection If a Ping_DS_Ack is not received from the DS Clean-up and restart the socket connection In this sequence, the data formats for the messages must follow the requirements shown earlier. I.e., the Startup_DS message must include the correct client type; the Send_DS_Ack messages must include the hostID and sequenceID data, etc. The data contents received by the DC will usually be formatted and forwarded to other CSP-internal procedures for further processing. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Socket programming with PHP risky?
I've noticed in the PHP docs EXPERIMENTAL is marked over all the socket functions. Would it be risky to develop a PHP socket app using those functions? It seems they could change with the next release and my app would instantly stop working. On the other hand, I've found a lot of tutorials extolling PHP's socket functions, and since I know PHP a bit now I would rather use it for my TCP socket application than learn C and implement it there. What do you think? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] str_replace() problem
I am performing a str_replace() on a large string, and everything works fine, except that two of the elements I'm searching for (and replacing) have the same first letters. To keep it the issue clear, here's a simple example of what I'm talking about: Blue Blueberry Now, if I use: str_replace(Blue,Red,$paragraph); str_replace(Blueberry,Strawberry,$paragraph); ...all occurrences of Blueincluding Blueberrywill be replaced with Red. The result will be something like: Red Redberry ...But what I want is... Red Strawberry I need str_replace to somehow only search for a complete occurrence of each item. How do I do that? I've read the docs, and I just can't see any examples. Thanks. ...Rene --- Ren Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Tricky sorting problem
(Well, at least it's tricky for me... :-)
I need to sort an array based on three numbers that are situated in the
middle of each array element. For example:
$list[] is an array, and contains the following [unsorted] elements:
Super-S862-030.jpg
Super-S1162-040.jpg
Super-S874-010.jpg
Super-S1174-020.jpg
I want to sort $list based on those last three numbers, just before the
extension, so that the new sort order is:
Super-S874-010.jpg
Super-S1174-020.jpg
Super-S862-030.jpg
Super-S1162-040.jpg
I tried writing my own sort function--but can't seem to get anywhere
with it:
function cmp ($a,$b) {
if (substr($a,-5,2) == substr($b,-5,2)) return 0;
return (substr($a,-5,2) substr($b,-5,2)) ? -1 : 1 ;
}
usort($list,cmp);
Any ideas? (Thanks.)
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
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Re: [PHP] Tricky sorting problem
It works! Thanks.
On Wednesday, October 30, 2002, at 10:50 AM, @ Edwin wrote:
...and the 2 should be 3 :)
- E
Marek Kilimajer [EMAIL PROTECTED] wrote:
the -5 should be -7
René Fournier wrote:
(Well, at least it's tricky for me... :-)
I need to sort an array based on three numbers that are situated in
the middle of each array element. For example:
$list[] is an array, and contains the following [unsorted] elements:
Super-S862-030.jpg
Super-S1162-040.jpg
Super-S874-010.jpg
Super-S1174-020.jpg
I want to sort $list based on those last three numbers, just before
the extension, so that the new sort order is:
Super-S874-010.jpg
Super-S1174-020.jpg
Super-S862-030.jpg
Super-S1162-040.jpg
I tried writing my own sort function--but can't seem to get anywhere
with it:
function cmp ($a,$b) {
if (substr($a,-5,2) == substr($b,-5,2)) return 0;
return (substr($a,-5,2) substr($b,-5,2)) ? -1 : 1 ;
}
usort($list,cmp);
Any ideas? (Thanks.)
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
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---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
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[PHP] Is there an ISP that supports GD Library 2.0?
I'm going to need it for a site I'm working on Any suggestions are much appreciated. --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Removing duplicates in multi-dimensional array
I'm finding this one hard to approach... I have a two-dimensional array, containing customer contact information. Looks like: $myarray[0][0] = Microsoft; $myarray[0][1] = Bill; $myarray[0][2] = 123-1234; $myarray[1][0] = Apple; $myarray[1][1] = Steve; $myarray[1][2] = 456-1234; $myarray[2][0] = Oracle; $myarray[2][1] = Larry; $myarray[2][2] = 987-4321; $myarray[3][0] = Pixar; $myarray[3][1] = Steve; $myarray[3][2] = 456-1234; What I want to do is remove records that have the same fax number, so that each fax number occurs only once. For example, $myarray[1][2] and $myarray[3][2] are the same--I would like to remove/unset one of them. I know that array_unique() will do this for one-dimensional arrays, but I'm kinda stuck here, since the repeating element is in the second dimension. Any ideas how I might do this? Thanks. ...Rene --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] How to implode multi-dimensional arrays?
The docs don't seem to discuss this... Or maybe I'm looking in the wrong place. Anyway, I want to convert a multidimensional array back to the tab-delimited format it began as (\t separating fields, \n seperating records/rows)... Any ideas??? ...Rene --- René Fournier, [EMAIL PROTECTED] Toll-free +1.888.886.2754 Tel +1.403.291.3601 Fax +1.403.250.5228 www.smartslitters.com SmartSlitters International #33, 1339 - 40th Ave NE Calgary AB T2E 8N6 Canada -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Simple array question
Is there a simple way to return the key (name) of one element in an array? I looked up key() in the docs, but there are no examples or notes... Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Check mysq_field_type, display appropriate FORM element
Hello everyone, I'm upgrading my simple CMS app, and would like to add a [simple] function to itwhich I'm finding is no so simple (at least for me). To illustrate: The user clicks Edit on a particular table row. The CMS then fetches that row from the table and begins displaying the value of each field in a form (which the user can then edit and at then click Update) . So far, so good. What I want to add is a function that will, depending on the field type (text, set, enum), display the field value as either a textarea or selectoption. For example, for a field called status, which is of type ENUM, and can contain the values Online or Offline, I want this CMS function to return something like selectoption... along with the allowed values, with the active one selected. Beyond this, I'd like to extend this check_field_type function to handle fields that contain links to images, etc. But this is where I need to start. Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Tricky variable syntax...
I'm trying to refer to a variable using $$, but with a twist. So far, this works: echo 'temp file: '.$$fld.'br'; In this case, $fld equals img_photo (although it could be anything). The above statement could have thus been echo 'file name: '.$img_photo.'br'; with the same results. So here I actually echo the value of the variable $img_photo. This is what I want. But here's my problem: echo 'file name: '.$$fld_name.'br'; What I want to do is echo the value of $img_photo_name. But how can I refer to it? Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Copying an uploaded file...
I'm trying to get a little upload script working... But I can't seem to
copy the tmp file to my local web directory (btw, do I really need to
specify the path, or can I just use a filename, and the file will be
written to the same directory as the PHP script??). Anyway, here is
the code:
$realname = $_FILES['userfile']['name'];
if(copy($_FILES['userfile']['tmp_name'],
'/Users/rene/Sites/renefournier/titan/res/'.$realname)) {
echo $realname.' uploaded';
} else {
echo $realname.' could not be uploaded';
}
echo 'br';
echo name: .$_FILES[$fld]['name'];
echo 'br';
echo type: .$_FILES[$fld]['type'];
echo 'br';
echo size: .$_FILES[$fld]['size'];
echo 'br';
echo tmp: .$_FILES[$fld]['tmp_name'];
echo 'br';
Here is the output:
could not be uploaded
name: web_share.gif
type: image/gif
size: 13370
tmp: /var/tmp/phpNqigbO
Thanks for any ideas.
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Re: [PHP] Copying an uploaded file...
Thanks John. I've simplified and improved the quote per your
suggestions, but still no dice. (I'[m running OS X 10.2.8.) Here is the
code:
// MOVE FILE
if
(move_uploaded_file($_FILES['userfile']['tmp_name'],$_FILES['userfile'][
'name'])) {
echo Success!;
} else {
echo NO!!!;
}
Here are the results:
NO!!!
Array ( [img_photo] = Array ( [name] =
apache_pb.gif [type] = image/gif [tmp_name] =
/var/tmp/phpvnTFqr [error] = 0 [size] = 2326
) )
Should the tmp directory maybe be set elsewhere? (If so, how can that
be done? I've looked at the httpd.conf file, but there is no entry for
upload tmp directory.)
Many thanks in advance.
...Rene
On Wednesday, October 29, 2003, at 12:41 PM, John Nichel wrote:
René Fournier wrote:
I'm trying to get a little upload script working... But I can't seem
to copy the tmp file to my local web directory (btw, do I really need
to specify the path, or can I just use a filename, and the file will
be written to the same directory as the PHP script??). Anyway, here
is the code:
$realname = $_FILES['userfile']['name'];
if(copy($_FILES['userfile']['tmp_name'],
'/Users/rene/Sites/renefournier/titan/res/'.$realname)) {
echo $realname.' uploaded';
} else {
echo $realname.' could not be uploaded';
}
PHP has built in functions to move the temp file for you
http://us3.php.net/manual/en/function.move-uploaded-file.php
echo 'br';
echo name: .$_FILES[$fld]['name'];
echo 'br';
echo type: .$_FILES[$fld]['type'];
echo 'br';
echo size: .$_FILES[$fld]['size'];
echo 'br';
echo tmp: .$_FILES[$fld]['tmp_name'];
echo 'br';
Do you know about print_r?
pre
?php print_r ( $_FILES ); ?
/pre
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Re: [PHP] Copying an uploaded file...
Thanks John. I've simplified and improved the quote per your
suggestions, but still no dice. (I'[m running OS X 10.2.8.) Here is the
code:
// MOVE FILE
if
(move_uploaded_file($_FILES['userfile']['tmp_name'],$_FILES['userfile'][
'name'])) {
echo Success!;
} else {
echo NO!!!;
}
Here are the results:
NO!!!
Array ( [img_photo] = Array ( [name] =
apache_pb.gif [type] = image/gif [tmp_name] =
/var/tmp/phpvnTFqr [error] = 0 [size] = 2326
) )
Should the tmp directory maybe be set elsewhere? (If so, how can that
be done? I've looked at the httpd.conf file, but there is no entry for
upload tmp directory.)
Many thanks in advance.
...Rene
On Wednesday, October 29, 2003, at 12:41 PM, John Nichel wrote:
René Fournier wrote:
I'm trying to get a little upload script working... But I can't seem
to copy the tmp file to my local web directory (btw, do I really need
to specify the path, or can I just use a filename, and the file will
be written to the same directory as the PHP script??). Anyway, here
is the code:
$realname = $_FILES['userfile']['name'];
if(copy($_FILES['userfile']['tmp_name'],
'/Users/rene/Sites/renefournier/titan/res/'.$realname)) {
echo $realname.' uploaded';
} else {
echo $realname.' could not be uploaded';
}
PHP has built in functions to move the temp file for you
http://us3.php.net/manual/en/function.move-uploaded-file.php
echo 'br';
echo name: .$_FILES[$fld]['name'];
echo 'br';
echo type: .$_FILES[$fld]['type'];
echo 'br';
echo size: .$_FILES[$fld]['size'];
echo 'br';
echo tmp: .$_FILES[$fld]['tmp_name'];
echo 'br';
Do you know about print_r?
pre
?php print_r ( $_FILES ); ?
/pre
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Re: [PHP] Copying an uploaded file...
I've added a path, but still no success
On Wednesday, October 29, 2003, at 05:11 PM, John Nichel wrote:
René Fournier wrote:
Thanks John. I've simplified and improved the quote per your
suggestions, but still no dice. (I'[m running OS X 10.2.8.) Here is
the code:
// MOVE FILE
if
(move_uploaded_file($_FILES['userfile']['tmp_name'],$_FILES['userfile'
][ 'name'])) {
echo Success!;
} else {
echo NO!!!;
}
Here are the results:
Give it a path for the file to be moved too...
if(move_uploaded_file($_FILES['userfile']['tmp_name'],
/path/to/save/ . $_FILES['userfile']['name'])) {
NO!!!
Array ( [img_photo] = Array ( [name] =
apache_pb.gif [type] = image/gif [tmp_name]
= /var/tmp/phpvnTFqr [error] = 0 [size] =
2326 ) )
Should the tmp directory maybe be set elsewhere? (If so, how can that
be done? I've looked at the httpd.conf file, but there is no entry
for upload tmp directory.)
Many thanks in advance.
...Rene
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Re: [PHP] Copying an uploaded file...
Ah, man, I just found my problem, and do I ever feel stupid... Thought I'd share it to highlight the it's right in front of one's nose feeling: copy($_FILES['userfile']['tmp_name']... ...was a sample code snippet. I had just copied and pasted it without changing the userfile partand since there was no 'userfile' in my form, it would never have worked. Using my own variable pointer $fld works. Thus: copy($_FILES[$fld]['tmp_name']. ...works. And that is all. In any case, thanks for the suggestions. ...Rene On Wednesday, October 29, 2003, at 11:28 PM, John Nichel wrote: Ren Fournier wrote: I've added a path, but still no success Does your webserver (Apache?) have write permission to the directory you're trying to move the file too? -- By-Tor.com It's all about the Rush http://www.by-tor.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] mysql_field_type() ...
...will say if a field is of type ENUM, but not its possible values (including default). Does anyone know how I can fetch possible values of a field type of ENUM? Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Sweet PHP backup / dump function for MySQL database
Right now, I'm using phpMyAdmin to periodically backup/dump a client MySQL database to a textfile (from which one can simply restore the database if it ever got corrupted). I'm also working on a super-simple CMS for the client to use themselves. I would like the client to also be able to easily backup his web site's MySQL database to a textfile and have that textfile emailed to whatever address he specifies. Sort of a two step approach: Enter email _ Backup and send database (click) I imagine someone somewhere has written a very nice function for doing this, which might take a few parameters, such as database, destination email address, etc. The main thing is that the function include complete inserts, extended inserts, backquotes, etc. Anyone have a sweet function like this they wanna share, and in so doing make the world a better place? :-) ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] GD question
I want to write a function the creates a new image composited from a 3x3 tile. The idea is that the center tile will be a photo, and the surrounding eight images will constitute a border and shadow to the composited image. So... The eight border/shadow images will always be the same, but the center image will be unique. Anyways, I've been playing with GD functions for a little while, and would appreciate any suggestions on how to accomplish this. I haven't been able to find a good tutorial on this kind of thing specificallycompositing tiles of images into a single image. Any ideas? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Problems with imagejpeg
I have a function that [is meant to] check if an image is greater than a certain width and height, and if it is, downsample it. The checking part works fine. Downsampling is happening though. Here's what I've got ($file = /somedirectory/photo.jpg): $src_img=imagecreatefromJPEG($file); $dst_img=imagecreatetruecolor($new_width,$new_height); imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_width,$new_height,$siz e[0],$size[1]); imagejpeg($dst_img,$file,$img_quality); Any ideas? Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] HELP! -- Problem with imagejpeg()
Hello, I have a function that is meant to check if an image is greater than a certain width and height, and if it is, downsample it. The checking part works fine. Downsampling is not happening though. Here's what I've got (btw, $file = /somedirectory/photo.jpg): $src_img=imagecreatefromJPEG($file); $dst_img=imagecreatetruecolor($new_width,$new_height); imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_width,$new_height,$siz e[0],$size[1]); imagejpeg($dst_img,$file,$img_quality); Any ideas? Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] regular expressions
I'm trying to 'clean up' some text that is extracted from a web directory, and I need to use (I think) preg_replace or ereg_replace, etc. I've read a bunch of tutorials, but none of them seem to cover the particular thing I want to do. Here's an example of text I need to process: - J. Smith ( More Info ) map driving directions add to My Directory update or remove Did you go to High School with J. Smith? B. Dixon ( More Info ) map driving directions add to My Directory update or remove Did you go to High School with B. Dixon? M. Jones ( More Info ) map driving directions add to My Directory update or remove Did you go to High School with M. Jones? - The above is a string. I want to eliminate, for example, all the lines that say Did you... ?, but I don't know how to refer to them because they are each a little different (because of the name). I know regular expressions can do this, but I can't seem to wrap my mind around the necessary arguments... This being my first foray into regex. I've written feeble stuff like: $result = ereg_replace(Did you go\[a-zA-Z]\?,,$result); But of course it doesn't work. Any ideas? Thanks. ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Socket client application
Hi, I've gone through several good PHP sockets tutorials, but all of them seem to focused on making socket servers. What I actually need to do is write a socket client. There's an app runnning on a distant server that accepts incoming TCP connections at such-and-such an IP address and port, and then responds to various commands and issues standard responses, etc.---I need to build the app that talks to it. Now maybe I'm missing something really obvious, but I can't find any tutorials on what such a socket client app might look like. The client I need to build must maintain the connection once started. Any ideas?? ...Rene -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Socket Server problem
I'm working through Ori Staub's excellent Socket Server tutorial
(http://www.zend.com/zend/tut/tutorial-staub3.php), but can't get the
sample server working. I've read the user comments and fixed a couple
things, but still, no dice. Here's the error I receive:
[Valhalla:~/Sites/test] rene% /usr/local/php/bin/php s9.php
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
PHP Notice: Undefined variable: client in
/Users/rene/Sites/test/s9.php on line 30
...and then it just hangs. Since I'm so new to sockets, and probably
don't yet grasp the concepts perfectly, I'm a little lost where to
start. Any ideas?
Here's my code:
?
// VARIABLES
set_time_limit(0);
$server_ip = 192.168.0.200;
$server_port = 7000;
$max_clients = 10;
// Array will hold client info
$clients = Array();
// Create TCP stream socket
$sock = socket_create(AF_INET,SOCK_STREAM,0);
// Bind the socket
socket_bind($sock,$server_ip,$server_port) or die('Could not bind to
address');
// Start listening...
socket_listen($sock);
// Loop
while (true)
{
// Setup clients listen socket for reading
$read[0] = $sock;
for ($i = 0; $i $max_clients; $i++)
{
if ($client[$i]['sock'] != null) $read[$i+1] = $client[$i]['sock'];
}
// Set up a blocking call to socket_select()
$ready = socket_select($read,$null=null,$null=null,$null=null);
// If a new connection is being made add it to the client array
if (in_array($sock,$read))
{
$cur_conn = count($client);
for ($i = 0; $i $cur_conn; $i++)
{
if ($client[$i]['sock'] == null)
{
$client[$i]['sock'] = socket_accept($sock);
break;
} elseif ($i == $max_clients - 1)
print (too many clients);
}
if (--$ready = 0)
continue;
} // end if in_array
// If a client is trying to write, deal with it
$cur_conn = count($client);
for ($i = 0; $i $cur_conn; $i++) // for each client
{
if (in_array($client[$i]['sock'],$read))
{
$input = socket_read($client[$i]['sock'],1024);
if ($input == null) { // Zero length string meaning
disconnected
unset($client[$i]);
}
if ($input == 'exit') { // requested disconnect
socket_close($client[$i]['sock']);
} elseif ($input) { // strip whitespace and writeback
to user
$output = ereg_replace([
\t\n\r],,$input).chr(0);
$socket_write($client[$i]['sock'],$output);
}
} else {
// Close the socket
socket_close($client[$i]['sock']);
unset($client[$i]);
}
}
} // end while
// Close the master sockets
socket_close($sock);
?
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[PHP] Socket server with multiple connections
I've gone through a few good socket client and server tutorials (such
as http://www.devshed.com/c/a/PHP/Socket-Programming-With-PHP/), and
have got the samples working. What I'm trying to do now is write a
simple Socket Server that will accept multiple connections, do its
thing, and keep running.
This Zend tutorial (http://www.zend.com/zend/tut/tutorial-staub3.php)
does explain the concepts pretty well, but I cannot for the life of me
get the sample code to run. The user comments noticed a couple typos,
and other errors, which I've fixed, but still... no dice. I'm running
PHP Version 4.3.4 on Mac OSX 10.2.8. Here's the error message:
--
[Valhalla:~/Sites/sockets/test] rene% /usr/local/php/bin/php s9.php
PHP Notice: Undefined offset: 0 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 0 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 1 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 1 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 2 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 2 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 3 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 3 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 4 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 4 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 5 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 5 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 6 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 6 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 7 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 7 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 8 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 8 in /Users/me/Sites/sockets/test/s9.php on
line 20
PHP Notice: Undefined offset: 9 in
/Users/me/Sites/sockets/test/s9.php on line 20
Notice: Undefined offset: 9 in /Users/me/Sites/sockets/test/s9.php on
line 20
--
Here my code:
--
?
// VARIABLES
set_time_limit(0);
$server_ip = 192.168.0.200;
$server_port = date(i).000;
// create socket
$socket = socket_create(AF_INET, SOCK_STREAM, 0) or die(Could not
create
socket\n);
// bind socket to port
$result = socket_bind($socket, $server_ip, $server_port) or die(Could
not bind to
socket\n);
// start listening for connections
$result = socket_listen($socket, 3) or die(Could not set up socket
listener\n);
echo Waiting for connections...\n;
// accept incoming connections
// spawn another socket to handle communication
$spawn = socket_accept($socket) or die(Could not accept incoming
connection\n);
echo Received connection request\n;
// write a welcome message to the client
$welcome = Welcome to the Server!\n .chr(0);
socket_write($spawn, $welcome, strlen ($welcome)) or die(Could not send
connect string\n);
// keep looping and looking for client input
do
{
// read client input
$input = socket_read($spawn, 1024) or die(Could not read
input\n);
if (trim($input) != )
{
echo Received input: $input\n;
// if client requests session end
if (trim($input) == END)
{
// close the child socket
// break out of loop
socket_close($spawn);
break;
}
// otherwise...
else
{
// reverse client input and send back
$output = strtoupper($input);
socket_write($spawn, $output) or die(Could
not write output\n);
echo Sent output: . trim($output) . \n;
}
}
} while (true);
// close primary socket
socket_close($socket);
echo Socket terminated\n;
?
---
Any ideas?
...Rene
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[PHP] Constant questions
Hi,
I have two questions involving Constants.
1. I want to refer to a refer to a Constant by its value (which is
unique), and return its name. E.g.,:
define (SEND_DS,1);
define (SEND_DS_ACK,2);
define (RESEND_DS,3);
define (STARTUP_DS,12);
For example, if I receive 3, I would like to echo RESEND_DS--the
name of the constant. Is there a simply way to do this? Or am I better
using an Associative Array (which is what I was thinking)? Then I could
such refer to an element by its key or value (both of which are
unique). I suppose this more of a performance/elegance issue, than
outright problem. Just curious what you think.
2. Let's say I have a Constant called MY_NAME, the value of which is
Rene, and I pass it to a function, such as:
function example ($val) {
echo ???;
}
example (MY_NAME);
Such that the output will be MY_NAME. If I echo $val, the output will
be Rene. But I want to see the constants Name, not Value. Any ideas?
Thanks.
...Rene
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