From:             bugs dot php dot net at sgerrand dot com
Operating system: Linux (Ubuntu x86_64 2.6.31-14)
PHP version:      5.2.11
PHP Bug Type:     cURL related
Bug description:  "failed creating formpost data" if post array value starts 
with '@'

Description:
------------
PHP's cURL library dies returning the error message "failed creating 
formpost data" when trying to use an array that contains a value 
starting with '@'. 

If the array is changed to a string in URL encoded like format, the 
problem does not occur.

Reproduce code:
---------------
<?php

$url = 'http://www.php.net';
$postData = array('key' => '@value');
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);

if (! curl_exec($ch) ) print 'cURL error: ' . curl_error($ch);
else print "cURL success";

curl_close($ch);

?>

Expected result:
----------------
cURL success

Actual result:
--------------
cURL error: failed creating formpost data

-- 
Edit bug report at http://bugs.php.net/?id=50060&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=50060&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=50060&r=trysnapshot53
Try a snapshot (PHP 6.0):            
http://bugs.php.net/fix.php?id=50060&r=trysnapshot60
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=50060&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=50060&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=50060&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=50060&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=50060&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=50060&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=50060&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=50060&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=50060&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=50060&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=50060&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=50060&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=50060&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=50060&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=50060&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=50060&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=50060&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=50060&r=mysqlcfg

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