php-general Digest 15 Oct 2011 14:01:51 -0000 Issue 7521
php-general Digest 15 Oct 2011 14:01:51 - Issue 7521
Topics (messages 315306 through 315313):
Re: Processing newlines in a text area field
315306 by: Stephen
move_uploaded_file() does not return any value or warning
315307 by: Partha Chowdhury
315308 by: Simon J Welsh
315309 by: Partha Chowdhury
Re: Dennis Ritchie, Father of Unix and C programming language, dead at 70
315310 by: Ricardo Martinez
315311 by: Arno Kuhl
315312 by: shiplu
Extending an instantiated class
315313 by: Alain Williams
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---BeginMessage---
On 11-10-13 10:49 PM, Stephen wrote:
I have a web page with a form with a text area. I enter:
foo
bar
PHP processes the POST and inserts the record into MySQL.
The database field is text.
I use PDO
For testing I have removed any processing of the text area content.
Now, no matter how many blank rows I have between foo and bar, in the
database record, I always get a single newline character.
Found the problem. I was not passing the record key properly to the SQL
UPDATE transaction.
So I had WHERE id =
Valid SQL so no error. But no record update :(
Thanks all
Stephen
---End Message---
---BeginMessage---
Hello List.
I am learning php and MySQL for my project work.
I am trying to upload files to local server.
First, a page is displayed on the browser to upload file
Relevant code:
form method=post action=index.php enctype=multipart/form-data
input type=file name=file
br
input type=submit name=submit value=upload
/form
After the user chooses a file and hit the submit button,the browser
displays the content from the uploads directory.
Php code:
?php
if (isset ($_POST['submit']) ($_POST['submit']==upload)) {
$pathname = uploads;
if (!file_exists($pathname)) {
$mkdir = mkdir($pathname);
if (!$mkdir) {
echo 'could not create directory uploads/';
exit();
}
}
$filename = $_FILES['file']['tmp_name'];
$destination = uploads/ . time() . _- .
$_FILES['file']['name'];
move_uploaded_file($filename, $destination);
header(Location:uploads/);
But the uploads directory is empty and no warning or error is displayed !
Then i set a check for the return value of move-uploaded_file.
if(isset ($move_uploaded_file)):
echo success;
else:
echo error in uploading;
endif;
But it does not print anything ! .According to manual,
Returns *TRUE* on success.
If /filename/ is not a valid upload file, then no action will occur,
and *move_uploaded_file()* will return *FALSE*.
If /filename/ is a valid upload file, but cannot be moved for some
reason, no action will occur, and *move_uploaded_file()* will return
*FALSE*. Additionally, a warning will be issued.
So the above code should have printed error in uploading.
Then i tried the copy() function and it prints a warning:
*Warning*: copy() [function.copy
http://localhost/file_uploading/function.copy]: Filename cannot be
empty in */srv/www/htdocs/file_uploading/index.php* on line *38*
line 38 is
copy($filename, $destination);
Then i did a print_r($_FILES['file']) and found that
$_FILES['file']['error'] was 1 .The problem was the file i was trying to
upload was 6M in size,greater than upload_max_filesize in /etc/php.ini
which was 2M.I changed that and now it works.
So I want to know - does move_uploaded_file returns false on failure or
is there a bug in my code ?
I am using php 5.3.8 which is configured with
'./configure' '--prefix=/php' '--with-apxs2=/apache/bin/apxs'
'--with-config-file-path=/etc' '--with-mysql-sock=/tmp/mysql.sock'
'--with-openssl' '--with-zlib' '--enable-bcmath' '--with-bz2'
'--enable-calendar' '--with-gdbm' '--with-enchant' '--enable-exif'
'--enable-ftp' '--with-gd' '--enable-gd-native-ttf' '--with-gettext'
'--with-gmp' '--enable-mbstring' '--with-mcrypt' '--with-readline'
'--enable-soap' '--enable-sqlite-utf8' '--enable-zip'
'--with-mysql=mysqlnd' '--with-mysqli=mysqlnd'
'--with-jpeg-dir=/usr/lib' '--with-freetype-dir'
and error_reporting directive in php.ini is error_reporting = E_ALL |
E_STRICT.
---End Message---
---BeginMessage---
On 15/10/2011, at 4:01 PM, Partha Chowdhury wrote:
Then i set a check for the return value of move-uploaded_file.
if(isset ($move_uploaded_file)):
echo success;
else:
echo error in uploading;
endif;
But it does not print anything !
Assuming you did $move_uploaded_file =
Re: [PHP] Dennis Ritchie, Father of Unix and C programming language, dead at 70
int main()
{
printf(R.I.P. Dennis Ritchie: 1941-2011\n);
return 0
}
sad notice... RIP
On Fri, Oct 14, 2011 at 10:01 PM, tamouse mailing lists
tamouse.li...@gmail.com wrote:
On Thu, Oct 13, 2011 at 5:08 PM, Daevid Vincent dae...@daevid.com wrote:
#include stdio.h
int main()
{
printf(R.I.P. Dennis Ritchie: 1941-2011\n);
return 0;
}
http://www.networkworld.com/news/2011/101311-ritchie-251936.html
dmr--; /* :-( */
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Ricardo
___
IT Architect
website: http://www.pulsarinara.com
RE: [PHP] Dennis Ritchie, Father of Unix and C programming language, dead at 70
-Original Message-
From: Daevid Vincent [mailto:dae...@daevid.com]
Sent: 14 October 2011 12:08 AM
To: php-general@lists.php.net
Subject: [PHP] Dennis Ritchie, Father of Unix and C programming language,
dead at 70
#include stdio.h
int main()
{
printf(R.I.P. Dennis Ritchie: 1941-2011\n);
return 0;
}
http://www.networkworld.com/news/2011/101311-ritchie-251936.html
===
He might have put it a bit differently:
int main()
{
printf(Goodbye world\n);
return 0;
}
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Re: [PHP] Dennis Ritchie, Father of Unix and C programming language, dead at 70
I found this, And I liked it.
int main()
{
printf(Goodbye Daddy\n);
return 0;
}
--
Shiplu Mokadd.im
Follow me, http://twitter.com/shiplu
Innovation distinguishes between follower and leader
[PHP] Extending an instantiated class
Well, that is what I think that I need. Please let me explain what I am trying
to do
and tell me how to do it or a better way of doing it.
I have an application where a Screen (web page) may contain several Forms. The
Forms
will want to access properties, etc, from their Screen. So what I want is to do
something like:
class Screen {
private $JavascriptVars = array();
function AddJsVar($name, $val) {
$this-JavascriptVars[$name] = $val;
}
}
class Form extends Screen {
public $screen; // Could set to a class Screen
function DefineForm($fName)
.
}
$s = new Screen();
$s-AddJsVar('Date', '15 Oct 2011');
$f1 = new Form($s);
$f1-DefineForm('search');
$f1-AddJsVar('CompanyName', 'IBM');
$f2 = new Form($s);
$f2-DefineForm('login');
$f2-AddJsVar('Error', 'Login failed');
The trouble is that $f1-AddJsVar() will fail, class extention seems not
designed to work like that.
I could make it work by either:
1) $f1-screen-AddJsVar() --- but I would rather avoid the extra '-screen'.
2) Use of a __call() in class Form -- but that makes things slower.
Any help gratefully received.
I think that to do what I want PHP would need a syntax like:
$f2 = new $s Form();
or
$f2 = $s-new Form();
--
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT
Lecturer.
+44 (0) 787 668 0256 http://www.phcomp.co.uk/
Parliament Hill Computers Ltd. Registration Information:
http://www.phcomp.co.uk/contact.php
#include std_disclaimer.h
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[PHP] Image Rotation Script
We have a simple script which rotates and image to a random value, saves
it to a cache directory and displays it. For some reason when I move the
script from a Debian box over to the production CentOS machine, it no
longer caches any of the images. the rest works, but not the cache. If you
could look at it and see if anything jumps out at you, please let me know.
install the code below to the directory /angles
.htaccess:
RewriteEngine on
RewriteRule ^rotate_(\d+)(?:_(?:\d+))?.png$ rotate.php?im=$1
rotate.php:
?php
// Setup
if(isset($_GET['im']) file_exists($_GET['im'].'.png')) {
header('Content-type: image/png');
$im = $_GET['im'].'.png';
$degrees = rand(0, 360);
$save = 'cache/'.$_GET['im'].'_'.$degrees.'.png';
if(!file_exists($save)) {
// Rotate via command line and cache it
exec('convert '.$im.' -filter \'Lanczos\' -resize \'150x150\' -rotate
'.$degrees.' -black-threshold 40% '.$save, $out);
}
// Output out (newly?) cached file
echo file_get_contents($save);
} else {
die(Image not found);
}
?
Use it by url:
http://www.servername.com/angles/rotate_019.png
Each time you reload page the angle should rotate to a new position.
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Re: [PHP] Image Rotation Script
On 15 Oct 2011, at 15:50, d...@nkmo.com wrote:
We have a simple script which rotates and image to a random value, saves
it to a cache directory and displays it. For some reason when I move the
script from a Debian box over to the production CentOS machine, it no
longer caches any of the images. the rest works, but not the cache. If you
could look at it and see if anything jumps out at you, please let me know.
install the code below to the directory /angles
.htaccess:
RewriteEngine on
RewriteRule ^rotate_(\d+)(?:_(?:\d+))?.png$ rotate.php?im=$1
rotate.php:
?php
// Setup
if(isset($_GET['im']) file_exists($_GET['im'].'.png')) {
header('Content-type: image/png');
$im = $_GET['im'].'.png';
$degrees = rand(0, 360);
$save = 'cache/'.$_GET['im'].'_'.$degrees.'.png';
if(!file_exists($save)) {
// Rotate via command line and cache it
exec('convert '.$im.' -filter \'Lanczos\' -resize \'150x150\' -rotate
'.$degrees.' -black-threshold 40% '.$save, $out);
}
// Output out (newly?) cached file
echo file_get_contents($save);
} else {
die(Image not found);
}
?
Use it by url:
http://www.servername.com/angles/rotate_019.png
Each time you reload page the angle should rotate to a new position.
My first thought was that the current working directory is probably set
differently. However, you say that the script works and presents the rotated
images, it's just the cache that isn't right. I still think I'm probably
correct, so try these changes...
$im = dirname(__FILE__).'/'.$_GET['im'].'.png';
and...
$save = dirname(__FILE__).'/cache/'.$_GET['im'].'_'.$degrees.'.png';
You also have a pretty major hole here because you're taking a querystring
parameter and putting it straight into a command line. What happens if I pass
the value of $_GET['im'] as ../../../../../../../../../../../etc/passwd ? Use
escapeshellarg when putting variables into command lines to protect against
this type of hack.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
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[PHP] Re: Extending an instantiated class
On Sat, Oct 15, 2011 at 03:01:44PM +0100, Alain Williams wrote:
Well, that is what I think that I need. Please let me explain what I am
trying to do
and tell me how to do it or a better way of doing it.
..
I have solved it. The problem is basically one of ensuring that properties are
the same
value when accessed via the parent or child class ... be that to get or set a
value.
So I solved the problem by making the properties in the child class references
to the
ones in the parent class.
Methods are not a problem - inheritance just works fine.
To do this, pass the instance of the parent class to the child class
constructor and use
a reflection class to determine the properties in the parent class. This will
not work
properly if the child class overrides a property of the parent class ... this
does not
worry me.
class Screen {
public $screen;
}
class Form extends Screen {
function __construct($s) {
$sr = new ReflectionClass($s);
foreach($sr-getProperties(ReflectionProperty::IS_PUBLIC |
ReflectionProperty::IS_PROTECTED) as $p)
$this-{$p-name} = $s-{$p-name};
}
}
$s = new Screen();
$s-AddJsVar('Date', '15 Oct 2011');
$f1 = new Form($s);
$f1-screen = 'something'; // this assigns the property in $s.
Comments ?
--
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT
Lecturer.
+44 (0) 787 668 0256 http://www.phcomp.co.uk/
Parliament Hill Computers Ltd. Registration Information:
http://www.phcomp.co.uk/contact.php
#include std_disclaimer.h
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[PHP] Seeking strategy/algorithm for maintaining order of records
I am building a site for my photography. The photographs are displayed by category. The category table has a field for order In my control panel I want to be able to change the order of the categories by changing the values in the category field. I can dynamically build a form of all categories and have a field for new order number, Then loop through the POST and update the values. The field is not unique, so I am not worried about DB errors. But I wonder if there is a better way. Thoughts please? Thank you Stephen -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
