From:             
Operating system: Windows XP SP3
PHP version:      Irrelevant
Package:          URL related
Bug Type:         Bug
Bug description:http_build_query seem to encode array incorrectly

Description:
------------
I was working in VS.php with a CodeIgniter Project (5.2) and have not made
any 

changes to the standard setup.

Test script:
---------------
<?php



$a = array(); 

$a["foo/bar"] = array();

$a["foo/bar"][] = "1";

$a["foo/bar"][] = "2";

$a["bar"] = "foo";



$b = http_build_query($a, NULL, "&");

// $b

// expected : foo%2Fbar%5B%5D=1&foo%2Fbar%5B%5D=2&bar=foo

// produced : foo%2Fbar%5B0%5D=1&foo%2Fbar%5B1%5D=2&bar=foo



$c = urldecode($b);

// $c

// expected : foo/bar[]=1&foo/bar[]=2&bar=foo

// produced : foo/bar[0]=1&foo/bar[1]=2&bar=foo



echo $c;

Expected result:
----------------
foo/bar[]=1&foo/bar[]=2&bar=foo

Actual result:
--------------
foo/bar[0]=1&foo/bar[1]=2&bar=foo

-- 
Edit bug report at http://bugs.php.net/bug.php?id=52359&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=52359&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=52359&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=52359&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=52359&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=52359&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=52359&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=52359&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=52359&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=52359&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=52359&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=52359&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=52359&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=52359&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=52359&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=52359&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=52359&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=52359&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=52359&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=52359&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=52359&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=52359&r=mysqlcfg

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