php-general Digest 30 Oct 2004 19:49:23 -0000 Issue 3083
Topics (messages 200699 through 200730):
Re: Command Line Script
200699 by: Chris Shiflett
200710 by: Steve Douville
200714 by: - Edwin -
Re: PHP in CGI ....php.in
200700 by: Christian Ista
Re: Session and validation
200701 by: Jason Barnett
200702 by: Chris Shiflett
200706 by: Stuart Felenstein
200708 by: Graham Cossey
200709 by: Stuart Felenstein
200724 by: Jason Wong
Re: Bug-Tracking-System in PHP ?
200703 by: Reinhart Viane
standard ini settings
200704 by: Reinhart Viane
200725 by: Jason Wong
image files - upload and managment
200705 by: Jaskirat Singh
200726 by: Jason Wong
200727 by: Robby Russell
200729 by: raditha dissanayake
localeconv
200707 by: Klaus Reimer
php compiler
200711 by: Hodicska Gergely
200712 by: Mike
200713 by: Klaus Reimer
200715 by: Marek Kilimajer
200716 by: Marek Kilimajer
200717 by: Hodicska Gergely
200718 by: Hodicska Gergely
200719 by: Klaus Reimer
200720 by: Klaus Reimer
200721 by: Hodicska Gergely
200722 by: Hodicska Gergely
200723 by: Klaus Reimer
Re: (Regex) not working, take a quick look at it plz?
200728 by: Jason Wong
Trouble with the ISAPI in PHP4
200730 by: George Hester
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----------------------------------------------------------------------
--- Begin Message ---
--- Steve Douville <[EMAIL PROTECTED]> wrote:
> I'm trying to write something to run as a cron job that will
> perform an sftp command and then run a batch file. I was trying
> to use:
>
> system("sftp [EMAIL PROTECTED]")
>
> But that stalls and waits for a password before continuing with
> the script. Any ideas on how to pass the password when it's
> prompted?
Yes, you have to use a language like Expect.
If you want to stick with PHP, you're better off using an ssh key, so that
you're not prompted for the password.
Hope that helps.
Chris
=====
Chris Shiflett - http://shiflett.org/
PHP Security - O'Reilly HTTP Developer's Handbook - Sams
Coming December 2004 http://httphandbook.org/
--- End Message ---
--- Begin Message ---
>
> If you want to stick with PHP, you're better off using an ssh key, so that
> you're not prompted for the password.
>
Ahh, okay thanks. If anyone can point me to some useful docs, I'd appreciate
it. I've been looking on google but not really sure what's right and what's
not.
Thanks,
Steve
--- End Message ---
--- Begin Message ---
Hi,
On Sat, 30 Oct 2004 09:42:13 -0400
"Steve Douville" <[EMAIL PROTECTED]> wrote:
> >
> > If you want to stick with PHP, you're better off using an
> > ssh key, so that you're not prompted for the password.
> >
>
> Ahh, okay thanks. If anyone can point me to some useful
> docs, I'd appreciate it. I've been looking on google but
> not really sure what's right and what's not.
Try this:
http://www.google.com/search?q=ssh+no+password
I think the first one is the one you're looking for :)
Anyway, just try the other links on the page as well...
HTH,
--
- E - copperwalls was here ;)
"There is going to be a resurrection." - Acts 24:15
--- End Message ---
--- Begin Message ---
> #!/usr/bin/php -c /path/to/php.ini
I tried this
#!/usr/local/lib/php -c php.ini
In the php.ini :
register_globals = on
but that's not work
Any idea ?
Christian,
--- End Message ---
--- Begin Message ---
Maybe that is my problem , that session variables will
get blown away when the validations are run in the
same page. Shouldn't be right ?
A session variable will last the lifetime of the session... it's a php.ini
setting. Session variables should remain in the session store until it is
collected by the garbage collector.
Let me ask though if I setup just a validation page,
then on success I'm still doing a redirect (cause it's
a multi page form)
Not sure what the question was here?
Or if I validate on the next page and there is an
error, I redirect back, but then I also have to
consider how the error is going to get printed on the
first page.
You can store an error message in a session variable. On the first page do your
error output like you normally would, just check this session variable to see if
there's an error.
In addition to this, you can put some javascript on the first page to validate
on the client's side. You shouldn't rely on this, but it can cut down on trips
to the server with bad input.
Anyone ?
Stuart
--- End Message ---
--- Begin Message ---
--- Stuart Felenstein <[EMAIL PROTECTED]> wrote:
> I had this thread going yesterday. Then basically
> think it reached a stalemate.
I think you need to try to simplify your code to the most basic example
that demonstrates the problem. By doing this, you'll achieve one of two
things:
1. Figure out the problem yourself.
2. Generate a perfect example that we can use to better understand your
problem and suggest a solution.
> I'm wondering has anyone setup forms using session variables
> and validation.
Yes, this is very, very common. :-)
> Validation where the validating is done on the same page, and
> the redirected on success?
This is also very, very common.
> Let me ask though if I setup just a validation page,
> then on success I'm still doing a redirect (cause it's
> a multi page form)
>
> Or if I validate on the next page and there is an
> error, I redirect back, but then I also have to
> consider how the error is going to get printed on the
> first page.
How you design this is subjective, but my opinion is that redirects are
only handy when you want to avoid the user's browser asking whether to
resubmit a POST request when they're using the history mechanism, as I
describe here:
http://www.phpmag.net/itr/online_artikel/psecom,id,637,nodeid,114.html
Aside from that case (which is your case if you're using the POST method),
I prefer to include the appropriate module rather than redirecting the
user. It seems silly for them to request a resource only to be told to go
somewhere else to find it. If we know where it is, why not just return it?
That's the basis of my opinion. :-)
Hope that helps.
Chris
=====
Chris Shiflett - http://shiflett.org/
PHP Security - O'Reilly HTTP Developer's Handbook - Sams
Coming January 2004 http://httphandbook.org/
--- End Message ---
--- Begin Message ---
--- Chris Shiflett <[EMAIL PROTECTED]> wrote:
> --- Stuart Felenstein <[EMAIL PROTECTED]> wrote:
> > I had this thread going yesterday. Then basically
> > think it reached a stalemate.
>
> I think you need to try to simplify your code to the
> most basic example
> that demonstrates the problem. By doing this, you'll
> achieve one of two
> things:
>
> 1. Figure out the problem yourself.
> 2. Generate a perfect example that we can use to
> better understand your
> problem and suggest a solution.
>
Yes, this is exactly what I did and why I dredged up
this topic again:
Here is the example:
testarray (page1)
//Start the session
<?php session_start();
//Check for the array on submit
if ( empty( $_SESSION['l_industry'] ) ) {
$_SESSION['l_industry']=array();
}
//Check to make sure user didnt exceed 5 selections
if (count($industry) > 5) {
echo "you have selected too many industries";
exit;
}
?>
<?php
//Redirect to results page if user stayed in 5 option
//range
if ($_SERVER["REQUEST_METHOD"] == "POST") {
Header("Location:
http://www.......com/TAresults.php";);
}
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<?php //PHP ADODB document - made with PHAkt 2.7.3?>
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html;
charset=iso-8859-1">
</head>
<body>
<table width="500" border="1" align="center"
cellpadding="2" cellspacing="2">
<tr>
<td><form name="form1" id="form1" method="post"
action="">
<select name="industry[]" size="10"
multiple="multiple" id="industry[]">
<option value="1" <?php if (!(strcmp(1,
"Please Select"))) {echo "SELECTED";}
?>>Accounting</option>
<option value="2" <?php if (!(strcmp(2,
"Please Select"))) {echo "SELECTED";}
?>>Entertainment</option>
<option value="3" <?php if (!(strcmp(3,
"Please Select"))) {echo "SELECTED";}
?>>label</option>
<option value="4" <?php if (!(strcmp(4,
"Please Select"))) {echo "SELECTED";} ?>>Advertising
</option>
<option value="5" <?php if (!(strcmp(5,
"Please Select"))) {echo "SELECTED";} ?>>Customer
Service</option>
<option value="6" <?php if (!(strcmp(6,
"Please Select"))) {echo "SELECTED";} ?>>Informatin
Technology</option>
</select>
<input type="submit" name="Submit"
value="Submit">
</form></td>
</tr>
</table>
</body>
</html>
TAresults (page2):
<?php session_start();
if ( empty( $_SESSION['l_industry'] ) ) {
$_SESSION['l_industry']=array();
}
if ( is_array( $_REQUEST['LurkerIndustry'] ) ) {
$_SESSION['l_industry'] = array_unique(
array_merge( $_SESSION['l_industry'],
$_REQUEST['LurkerIndustry'] )
);
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns="http://www.w3.org/1999/xhtml";>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=iso-8859-1" />
<title>Untitled Document</title>
</head>
<body>
<?php
echo "The time is"."<br />";
echo $industry['0']."<br />";
echo $industry['1']."<br />";
echo $industry['2']."<br />";
echo $industry['3']."<br />";
echo $industry['4']."<br />";
echo $industry['5']."<br />";
echo $industry['6']."<br />";
echo $industry['7']."<br />";
echo $industry['8']."<br />";
echo $industry['9']."<br />";
echo $industry['10']."<br />";
echo $industry['11']."<br />";
?>
<?php
unset($l_industry);
?>
</body>
</html>
The results here, are whether the check passes or not
the variables never echo.
If I set action on page 1 to TAresults.php , then they
echo out fine.
Stuart
--- End Message ---
--- Begin Message ---
[snip]
>
> Here is the example:
>
> testarray (page1)
> //Start the session
> <?php session_start();
>
> //Check for the array on submit
> if ( empty( $_SESSION['l_industry'] ) ) {
> $_SESSION['l_industry']=array();
> }
$industry = $_POST['industry']; // ??
> //Check to make sure user didnt exceed 5 selections
> if (count($industry) > 5) {
> echo "you have selected too many industries";
> exit;
> }
So, if this is the result of a form submission how are you getting the POST
variables?
How/where is $industry being set? I appears that you are assuming that
variables are 'maintained' within a script, they are not. You have to
remember that although you are running the same script it is not the same
'instance' of the script as a request/response has occurred. You MUST pass
and retrieve SESSION/POST/GET variables if you intend to use them in your
script.
$_SESSION['x'] = $_POST['x'];
$_SESSION['y'] = $_POST['y'];
etc etc...
> ?>
> <?php
> //Redirect to results page if user stayed in 5 option
> //range
> if ($_SERVER["REQUEST_METHOD"] == "POST") {
> Header("Location:
> http://www.......com/TAresults.php";);
> }
You do not appear to have set the SESSION variables before redirecting to
the next page.
> ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
> Transitional//EN"
> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
> <?php //PHP ADODB document - made with PHAkt 2.7.3?>
> <html>
> <head>
> <title>Untitled Document</title>
> <meta http-equiv="Content-Type" content="text/html;
> charset=iso-8859-1">
> </head>
>
> <body>
> <table width="500" border="1" align="center"
> cellpadding="2" cellspacing="2">
> <tr>
> <td><form name="form1" id="form1" method="post"
> action="">
Not sure about this... have you used action="$PHP_SELF" ?
> <select name="industry[]" size="10"
> multiple="multiple" id="industry[]">
> <option value="1" <?php if (!(strcmp(1,
> "Please Select"))) {echo "SELECTED";}
> ?>>Accounting</option>
> <option value="2" <?php if (!(strcmp(2,
> "Please Select"))) {echo "SELECTED";}
> ?>>Entertainment</option>
> <option value="3" <?php if (!(strcmp(3,
> "Please Select"))) {echo "SELECTED";}
> ?>>label</option>
> <option value="4" <?php if (!(strcmp(4,
> "Please Select"))) {echo "SELECTED";} ?>>Advertising
> </option>
> <option value="5" <?php if (!(strcmp(5,
> "Please Select"))) {echo "SELECTED";} ?>>Customer
> Service</option>
> <option value="6" <?php if (!(strcmp(6,
> "Please Select"))) {echo "SELECTED";} ?>>Informatin
> Technology</option>
> </select>
> <input type="submit" name="Submit"
> value="Submit">
> </form></td>
> </tr>
> </table>
> </body>
> </html>
>
> TAresults (page2):
>
> <?php session_start();
>
> if ( empty( $_SESSION['l_industry'] ) ) {
> $_SESSION['l_industry']=array();
> }
>
> if ( is_array( $_REQUEST['LurkerIndustry'] ) ) {
> $_SESSION['l_industry'] = array_unique(
> array_merge( $_SESSION['l_industry'],
> $_REQUEST['LurkerIndustry'] )
> );
> }
> ?>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
> Transitional//EN"
> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
> <html xmlns="http://www.w3.org/1999/xhtml";>
> <head>
> <meta http-equiv="Content-Type" content="text/html;
> charset=iso-8859-1" />
> <title>Untitled Document</title>
> </head>
>
> <body>
> <?php
> echo "The time is"."<br />";
> echo $industry['0']."<br />";
> echo $industry['1']."<br />";
> echo $industry['2']."<br />";
> echo $industry['3']."<br />";
> echo $industry['4']."<br />";
> echo $industry['5']."<br />";
> echo $industry['6']."<br />";
> echo $industry['7']."<br />";
> echo $industry['8']."<br />";
> echo $industry['9']."<br />";
> echo $industry['10']."<br />";
> echo $industry['11']."<br />";
Sorry, I cannot see where $industry is being set. This may just need
$industry = $_SESSION['industry'];
>
> ?>
> <?php
> unset($l_industry);
> ?>
> </body>
> </html>
>
> The results here, are whether the check passes or not
> the variables never echo.
> If I set action on page 1 to TAresults.php , then they
> echo out fine.
>
> Stuart
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
--- End Message ---
--- Begin Message ---
--- Graham Cossey <[EMAIL PROTECTED]> wrote:
> So, if this is the result of a form submission how
> are you getting the POST
> variables?
> How/where is $industry being set? I appears that you
> are assuming that
> variables are 'maintained' within a script, they are
> not. You have to
> remember that although you are running the same
> script it is not the same
> 'instance' of the script as a request/response has
> occurred. You MUST pass
> and retrieve SESSION/POST/GET variables if you
> intend to use them in your
> script.
>
Yes, I see your point about the instance changing. I
made the change and set session = post prior to the
redirect and it's working proper.
Now, I will need to go back and try my other scripts
to see if this holds up in them. I thought I already
tried , but a fresh start may help.
Stuart
--- End Message ---
--- Begin Message ---
On Saturday 30 October 2004 10:27, Stuart Felenstein wrote:
> --- Chris Shiflett <[EMAIL PROTECTED]> wrote:
> > --- Stuart Felenstein <[EMAIL PROTECTED]> wrote:
> > > I had this thread going yesterday. Then basically
> > > think it reached a stalemate.
> >
> > I think you need to try to simplify your code to the
> > most basic example
> > that demonstrates the problem. By doing this, you'll
> > achieve one of two
> > things:
> >
> > 1. Figure out the problem yourself.
> > 2. Generate a perfect example that we can use to
> > better understand your
> > problem and suggest a solution.
>
> Yes, this is exactly what I did and why I dredged up
> this topic again:
>
> Here is the example:
In my reply to your 'dead' thread I suggested you concoct a barest minimum
example.
Which means:
> //Check to make sure user didnt exceed 5 selections
> if (count($industry) > 5) {
> echo "you have selected too many industries";
No need to check for more than 5, just more than 1 would be sufficient for
proof of concept.
> ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
No need for extraneous useless HTML.
> <table width="500" border="1" align="center"
Ditto. What's the point of formatting it nicely?
Basically the less cruft there is the better the chance of you spotting the
problem yourself, and the likelyhood of people actually wading through your
code.
--
Jason Wong -> Gremlins Associates -> www.gremlins.biz
Open Source Software Systems Integrators
* Web Design & Hosting * Internet & Intranet Applications Development *
------------------------------------------
Search the list archives before you post
http://marc.theaimsgroup.com/?l=php-general
------------------------------------------
/*
"If you ever want to get anywhere in politics, my boy, you're going to
have to get a toehold in the public eye."
*/
--- End Message ---
--- Begin Message ---
Hmmm
No email support??
When a bug is posted, updated, a bug note is added, etc everyone who
subscribed to this 'topic' will receive a email on it
We use it in our firm and it works like a charm :)
-----Original Message-----
From: Michelle Konzack [mailto:[EMAIL PROTECTED]
Sent: vrijdag 29 oktober 2004 16:51
To: [EMAIL PROTECTED]
Subject: [PHP] Re: Bug-Tracking-System in PHP ?
Am 2004-10-29 09:48:32, schrieb Reinhart Viane:
> Dunno if this is ok:
> http://www.mantisbt.org/
Nice features and 1.0 support postgresql
(can not use MySQL because some tools conflicts with postgresql)
Unfortunatly no E-Mail support...
:-(
Greetings
Michelle
--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
Michelle Konzack Apt. 917 ICQ #328449886
50, rue de Soultz MSM LinuxMichi
0033/3/88452356 67100 Strasbourg/France IRC #Debian (irc.icq.com)
--- End Message ---
--- Begin Message ---
Can someone point me out the best ini settings?
Which are nowadays used as standards when scripts are writte?
I wanna make sure the codes i (try to) write meet this standards
Thx
_____
Reinhart Viane
<mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
Domos || D-Studio
Graaf Van Egmontstraat 15/3 -- B 2800 Mechelen -- tel +32 15 44 89 01 --
fax +32 15 43 25 26
STRICTLY PERSONAL AND CONFIDENTIAL
This message may contain confidential and proprietary material for the
sole use of the intended
recipient. Any review or distribution by others is strictly prohibited.
If you are not the intended
recipient please contact the sender and delete all copies.
--- End Message ---
--- Begin Message ---
On Saturday 30 October 2004 09:06, Reinhart Viane wrote:
> Can someone point me out the best ini settings?
> Which are nowadays used as standards when scripts are writte?
>
> I wanna make sure the codes i (try to) write meet this standards
The file 'php.ini-recommended' which is included in the source tarball has
reasonably sane settings which you can use as a starting point to tweak to
your satisfaction.
--
Jason Wong -> Gremlins Associates -> www.gremlins.biz
Open Source Software Systems Integrators
* Web Design & Hosting * Internet & Intranet Applications Development *
------------------------------------------
Search the list archives before you post
http://marc.theaimsgroup.com/?l=php-general
------------------------------------------
/*
There cannot be a crisis next week. My schedule is already full.
-- Henry Kissinger
*/
--- End Message ---
--- Begin Message ---
Hi People,
I am writing a web app on LAMP.
The app is sort of yellow pages where people can login and post
advertisments with pictures.
App needs to allow users to upload pictures. (jpg and gif),
needs to create thumbnails of those pictures
and to store thumbnails and full pictures.
App needs to manage all those files - can be as much as 20K plus
images.
I think image file size, file type and image dimensions restrictions
should be easy to handle by using $_FILES array and getimagesize
function.
The issues that I am thinking of and need suggestions about are
1) Storage and retrieval - File system sounds like a better choice
over database. We are talking about 20 thousand plus pictures.
2) Thumbnails - Should I create those once and save it in a file when
the image is uploaded for the first time. Looks like a faster option
than creating them every time on the fly.
3) Security issues - I believe I must have a world writable "666"
permissions directory to keep images as users of the web app are
uploading them. Does that create any security holes in my application?
4) Any thing else related to image uploads that one might need to take
care of. Are there any tutorials on image upload issues.
Thanks and HAND.
Jas
--- End Message ---
--- Begin Message ---
On Saturday 30 October 2004 09:43, Jaskirat Singh wrote:
> 1) Storage and retrieval - File system sounds like a better choice
> over database. We are talking about 20 thousand plus pictures.
Using a file system is usually the better choice. With the quantity of files
you're handling it might be wise to implement some kind of directory hashing.
For example having several thousand files in a single directory using
ext2/ext3 file system results in very poor performance.
> 2) Thumbnails - Should I create those once and save it in a file when
> the image is uploaded for the first time. Looks like a faster option
> than creating them every time on the fly.
Definitely much faster to create it once (probably on upload) and store it
rather than create on the fly each time.
> 3) Security issues - I believe I must have a world writable "666"
> permissions directory to keep images as users of the web app are
> uploading them. Does that create any security holes in my application?
If you're on a shared-host there's really not much you can do to keep your
files really (or even fairly) safe from your 'host mates'. What you can do is
largely limited by how the system was configured. Storing files in the
database can potentially add a layer of protection. If security is a concern
then you should shell out the extra for a dedicated host.
--
Jason Wong -> Gremlins Associates -> www.gremlins.biz
Open Source Software Systems Integrators
* Web Design & Hosting * Internet & Intranet Applications Development *
------------------------------------------
Search the list archives before you post
http://marc.theaimsgroup.com/?l=php-general
------------------------------------------
/*
I am more bored than you could ever possibly be. Go back to work.
*/
--- End Message ---
--- Begin Message ---
On Sat, 2004-10-30 at 02:43 -0700, Jaskirat Singh wrote:
> Hi People,
>
> I am writing a web app on LAMP.
> The app is sort of yellow pages where people can login and post
> advertisments with pictures.
>
> App needs to allow users to upload pictures. (jpg and gif),
> needs to create thumbnails of those pictures
> and to store thumbnails and full pictures.
>
> App needs to manage all those files - can be as much as 20K plus
> images.
>
> I think image file size, file type and image dimensions restrictions
> should be easy to handle by using $_FILES array and getimagesize
> function.
>
> The issues that I am thinking of and need suggestions about are
>
> 1) Storage and retrieval - File system sounds like a better choice
> over database. We are talking about 20 thousand plus pictures.
>
I would do it in the database (PostgreSQL in my case). The speed isn't
going to be much slower if you keep things optimized. You can even cache
your images if necessary on the filesystem (for high traffic images).
> 2) Thumbnails - Should I create those once and save it in a file when
> the image is uploaded for the first time. Looks like a faster option
> than creating them every time on the fly.
>
I just recently finished working on a project where I knew that would
automatically create a thumbnail version of each image on upload... but
then I realized that I might one day want to change the default
thumbnail sizes.. so what I did was have it create a thumbnail on the
fly from the database. (this way I can control the thumbnail size in the
future). The speed difference was hardly noticed. I have done what I
mentioned above and am now caching images that get loaded frequently.
> 3) Security issues - I believe I must have a world writable "666"
> permissions directory to keep images as users of the web app are
> uploading them. Does that create any security holes in my application?
>
The database will help you add a nice layer of security.
> 4) Any thing else related to image uploads that one might need to take
> care of. Are there any tutorials on image upload issues.
>
an example:
http://blog.planetargon.com/index.php?/archives/26_Uploading_images_into_PostgreSQL.html
and here is how you can display the images from the db. I am also using
mod_rewrite so that it looks like it's coming from the filesystem, for
example:
mydomain.com/images/mypic.jpg actually
calls ./image.php?filename=mypic.jpg
http://blog.planetargon.com/index.php?/archives/27_Displaying_image_from_PostgreSQL_large_object_with_PHP.html
hth,
-Robbyu
--
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* Robby Russell | Owner.Developer.Geek
* PLANET ARGON | www.planetargon.com
* Portland, OR | [EMAIL PROTECTED]
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Robby Russell wrote:
On Sat, 2004-10-30 at 02:43 -0700, Jaskirat Singh wrote:
Hi People,
I am writing a web app on LAMP.
The app is sort of yellow pages where people can login and post
advertisments with pictures.
App needs to allow users to upload pictures. (jpg and gif),
needs to create thumbnails of those pictures
and to store thumbnails and full pictures.
App needs to manage all those files - can be as much as 20K plus
images.
I think image file size, file type and image dimensions restrictions
should be easy to handle by using $_FILES array and getimagesize
function.
The issues that I am thinking of and need suggestions about are
1) Storage and retrieval - File system sounds like a better choice
over database. We are talking about 20 thousand plus pictures.
I would do it in the database (PostgreSQL in my case). The speed isn't
going to be much slower if you keep things optimized. You can even cache
your images if necessary on the filesystem (for high traffic images).
Robby's post is full of usefull information however though I am a
postgresql fan i beg to differ on this point. Speed is definitely going
to be slower when you insert and retrieve from blob (bytea) fields in
any database. That's probly why you you think caching is needed for
high traffic images :-)
--
Raditha Dissanayake.
------------------------------------------------------------------------
http://www.radinks.com/sftp/ | http://www.raditha.com/megaupload
Lean and mean Secure FTP applet with | Mega Upload - PHP file uploader
Graphical User Inteface. Just 128 KB | with progress bar.
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Hi,
I just noticed an annoying issue with locales in PHP and I'm not sure if
this behaviour is intended or it's a bug.
I'm doing the following:
setlocale(LC_ALL, 'de_DE');
$l = localeconv();
printf("Decimal point: %s\n", $l['decimal_point']);
printf("Thousands sep: %s\n", $l['thousands_sep']);
This should output a "," as decimal point and a "." as thousands
separator but it does only output the standard characters (A dot as
decimal point and nothing as thousands_sep).
My de_DE locale is properly set up. All other data returned by
localeconv is correct (EUR currency, Euro currency symbol, monetary
decimal point and monetary thousand separator and so on). Only the
decimal_point and thousands_sep is not working.
Also interesting is that printf("%.2f", 123.45) correctly outputs
"123,45". So PHP IS using a comma as decimal point but why does it not
show up in localeconv()?
I tried exactly the same code in C on the same machine and this is
working perfectly:
#include <locale.h>
int main(int argc, char *argv[])
{
struct lconv *l;
setlocale(LC_ALL, "de_DE");
l = localeconv();
printf("Decimal point: %s\n", l->decimal_point);
printf("Thousands sep: %s\n", l->thousands_sep);
return 0;
}
This outputs correct german decimal point and thousands separator.
Is there a reason for this misbehaviour of PHP? Or is it a bug? I
encounter this with PHP 5.0.2 and 4.3.9.
--
Bye, K <http://www.ailis.de/~k/> (FidoNet: 2:240/2188.18)
[A735 47EC D87B 1F15 C1E9 53D3 AA03 6173 A723 E391]
(Finger [EMAIL PROTECTED] to get public key)
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Hi!
$a = 0;
$b = 1;
if ($a = 1 && $b = 0) {
echo 'true ';
var_dump($a);
var_dump($b);
} else {
echo 'false ';
var_dump($a);
var_dump($b);
}
Runing this we get: "true bool(false) int(0)"
After the precedence table the first step could be evaluating the &&,
but not this is what happen.
Can someone exactly explain how PHP process the condition?
THX in advance,
Felho
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You're assigning values in your test.
Use == instead of = in the if condition.
=M
-----Original Message-----
From: Hodicska Gergely [mailto:[EMAIL PROTECTED]
Sent: Saturday, October 30, 2004 9:50 AM
To: [EMAIL PROTECTED]
Subject: [PHP] php compiler
Hi!
$a = 0;
$b = 1;
if ($a = 1 && $b = 0) {
echo 'true ';
var_dump($a);
var_dump($b);
} else {
echo 'false ';
var_dump($a);
var_dump($b);
}
Runing this we get: "true bool(false) int(0)"
After the precedence table the first step could be evaluating the &&,
but not this is what happen.
Can someone exactly explain how PHP process the condition?
THX in advance,
Felho
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Hodicska Gergely wrote:
$a = 0;
$b = 1;
if ($a = 1 && $b = 0) {
echo 'true ';
var_dump($a);
var_dump($b);
} else {
echo 'false ';
var_dump($a);
var_dump($b);
}
Runing this we get: "true bool(false) int(0)"
Are you sure you posted the example correctly? It outputs this: false
bool(false) int(0)
And this output is absolutely correct. Your condition gives new values
to $a and $b because you use "=" and not "==". So you do this:
$b = 0;
$a = 1 && $b;
The condition checks the value of $a (which is false) and so you land in
the else branch and that's why $b is int(0) and $a is bool(false)
I think you want this:
if ($a == 1 && $b == 0)
--
Bye, K <http://www.ailis.de/~k/> (FidoNet: 2:240/2188.18)
[A735 47EC D87B 1F15 C1E9 53D3 AA03 6173 A723 E391]
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Mike wrote:
You're assigning values in your test.
Use == instead of = in the if condition.
hmm, but he should not get what he gets anyways:
$a = 1 - evaluates to true, continue
$b = 0 - evaluates to false, so the whole if() condition is false, jump
to else and print:
false
1
0
He gets:
true
false
0
I get (php-5.0.2):
false
false
0
Or am I missing something?
=M
-----Original Message-----
From: Hodicska Gergely [mailto:[EMAIL PROTECTED]
Sent: Saturday, October 30, 2004 9:50 AM
To: [EMAIL PROTECTED]
Subject: [PHP] php compiler
Hi!
$a = 0;
$b = 1;
if ($a = 1 && $b = 0) {
echo 'true ';
var_dump($a);
var_dump($b);
} else {
echo 'false ';
var_dump($a);
var_dump($b);
}
Runing this we get: "true bool(false) int(0)"
After the precedence table the first step could be evaluating the &&,
but not this is what happen.
Can someone exactly explain how PHP process the condition?
THX in advance,
Felho
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Marek Kilimajer wrote:
Mike wrote:
You're assigning values in your test.
Use == instead of = in the if condition.
hmm, but he should not get what he gets anyways:
$a = 1 - evaluates to true, continue
$b = 0 - evaluates to false, so the whole if() condition is false, jump
to else and print:
ok, precedence :)
false
1
0
He gets:
true
false
0
I get (php-5.0.2):
false
false
0
Or am I missing something?
=M
-----Original Message-----
From: Hodicska Gergely [mailto:[EMAIL PROTECTED] Sent:
Saturday, October 30, 2004 9:50 AM
To: [EMAIL PROTECTED]
Subject: [PHP] php compiler
Hi!
$a = 0;
$b = 1;
if ($a = 1 && $b = 0) {
echo 'true ';
var_dump($a);
var_dump($b);
} else {
echo 'false ';
var_dump($a);
var_dump($b);
}
Runing this we get: "true bool(false) int(0)"
After the precedence table the first step could be evaluating the &&,
but not this is what happen.
Can someone exactly explain how PHP process the condition?
THX in advance,
Felho
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> Use == instead of = in the if condition.
Thx, I know the difference. The exapmle use willfuly =.
Felho
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> It outputs this: false bool(false) int(0)
Yes, this the right output.
> And this output is absolutely correct. Your condition gives new values
> to $a and $b because you use "=" and not "==". So you do this:
Maybe you never read this:
http://hu2.php.net/manual/en/language.operators.php#language.operators.precedence
The result is not so obvious. There sould some internal behavior which
cause this.
Felho
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Hodicska Gergely wrote:
> It outputs this: false bool(false) int(0)
Yes, this the right output.
And this output is absolutely correct. Your condition gives new values
to $a and $b because you use "=" and not "==". So you do this:
Maybe you never read this:
http://hu2.php.net/manual/en/language.operators.php#language.operators.precedence
The result is not so obvious. There sould some internal behavior which
cause this.
I don't see the problem. The behaviour of your code matches the
precendences in my opinion:
$a = 1 && $b = 0
PHP sees two expressions here:
$a = 1 && $b (because && has higher priority than =)
and
$b = 0;
So the condition resolves to "1 && 0" while $a is set to false and $b is
set to 0;
So where is the problem?
--
Bye, K <http://www.ailis.de/~k/> (FidoNet: 2:240/2188.18)
[A735 47EC D87B 1F15 C1E9 53D3 AA03 6173 A723 E391]
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Hodicska Gergely wrote:
$a = 1 && $b = 0
PHP sees two expressions here:
After the precedence table the first thing should be evaluating 1 && $b,
so we get:
$a = false = 0
Which is not meaningful thing, and maybe this cause that the evaluating
of the statment is not in the right order.
"=" has a "right " associativity. This is well explained on the page you
think I have not read. See Example 15-1. "$b = 0" is evaluated first and
the "1 && $b" is evaluated after that.
Everything else would make no sense. "(1 && $b) = 0" is not a valid
expression and throws an error.
--
Bye, K <http://www.ailis.de/~k/> (FidoNet: 2:240/2188.18)
[A735 47EC D87B 1F15 C1E9 53D3 AA03 6173 A723 E391]
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If you see the output, it seems, that PHP evaluate first $b = 0, and
this is the problem.
> $a = 1 && $b = 0
> PHP sees two expressions here:
After the precedence table the first thing should be evaluating 1 && $b,
so we get:
$a = false = 0
Which is not meaningful thing, and maybe this cause that the evaluating
of the statment is not in the right order.
Felho
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"=" has a "right " associativity. This is well explained on the page you
Oke, but && has a higher precedence. The "right " associativity has
sense when all the operand has the same precedence.
Felho
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Hodicska Gergely wrote:
Oke, but && has a higher precedence. The "right " associativity has
sense when all the operand has the same precedence.
I think the precedence of left and right associative operands can't be
compared. The switch between associativities already separates the
expression (if it could be explained this way). So you have to handle
"left-evaluated" expressions and "right-evaluated" expressions
separately. That's why "$b = 0" and "1 && $b" are evaluated separately.
The PHP manual gives a fine example: "Note: Although ! has a higher
precedence than =, PHP will still allow expressions similar to the
following: if (!$a = foo()), in which case the output from foo() is put
into $a."
And that's because "=" is "right" and "!" is "non-associative".
--
Bye, K <http://www.ailis.de/~k/> (FidoNet: 2:240/2188.18)
[A735 47EC D87B 1F15 C1E9 53D3 AA03 6173 A723 E391]
(Finger [EMAIL PROTECTED] to get public key)
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On Friday 29 October 2004 23:12, Ryan A wrote:
> I totally suck at RegEx (but am trying to learn), I got the following from
> the web, but its not working for me...
> can anyone spot what I am doing wrong or whats wrong please?
And what *exactly* is wrong?
What did you expect the code to do?
What did the code actually do?
Did you try debuggiong it yourself? print_r() or var_dump() everything.
--
Jason Wong -> Gremlins Associates -> www.gremlins.biz
Open Source Software Systems Integrators
* Web Design & Hosting * Internet & Intranet Applications Development *
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If I am loading extensions in my php.ini file then this is what happens when I try try
load the php4isapi.dll.
I go ahead and add it as an ISAPI filter the way it supposed to be done in IIS 5.
Then I stop the IISAdmin
Service and restart it. Then I start the Web Puublishing Service. This is where the
issue arises. If I am loading
extensions in my php.ini then I will get errors, "./extensions\php_gd2.dll not found "
for example of course loading
the php_gd2.dll extension in my php.ini. The specific dll is not the issue. It
happens with any extension I have
loaded in my php.ini upon starting the Web Publishing Service. Any ideas how to fix
this?
Thanks.
--
George Hester
__________________________________
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