From:             
Operating system: CentOS 2.6.18
PHP version:      Irrelevant
Package:          Network related
Bug Type:         Feature/Change Request
Bug description:headers_list should return in a key => value fashion

Description:
------------
The function headers_list() returns the headers in a numeric array fashion,

although, headers are, AFAIK, always in a `Key: Value` fashion, therefore,

associative array would be a better choice.

More on this, header_remove() works by simply passing the key, therefore,
in 
background, headers have their key representation, I suppose.

I've made an example function that uses this function, for a header lookup,
but 
ends up in "lots of lines" compared to what could be replaced with one: 
https://gist.github.com/1505803

P.S. This is my first file in PHP Bugs section, please guide me if I have
given 
not enough information.

Test script:
---------------
header('Test-Header: A random result');
var_dump(headers_list());

Expected result:
----------------
array(5) {
  ["X-Powered-By"]=>
  string(23) "PHP/5.3.3"
  ["Expires"]=>
  string(38) "Thu, 19 Nov 1981 08:52:00 GMT"
  ["Cache-Control"]=>
  string(77) "no-store, no-cache, must-revalidate, post-check=0,
pre-check=0"
  ["Pragma"]=>
  string(16) "no-cache"
  ["Test-Header"]=>
  string(28) "A random result"
}

Actual result:
--------------
array(5) {
  [0]=>
  string(23) "X-Powered-By: PHP/5.3.3"
  [1]=>
  string(38) "Expires: Thu, 19 Nov 1981 08:52:00 GMT"
  [2]=>
  string(77) "Cache-Control: no-store, no-cache, must-revalidate,
post-check=0, 
pre-check=0"
  [3]=>
  string(16) "Pragma: no-cache"
  [4]=>
  string(28) "Test-Header: A random result"
}

-- 
Edit bug report at https://bugs.php.net/bug.php?id=60584&edit=1
-- 
Try a snapshot (PHP 5.4):            
https://bugs.php.net/fix.php?id=60584&r=trysnapshot54
Try a snapshot (PHP 5.3):            
https://bugs.php.net/fix.php?id=60584&r=trysnapshot53
Try a snapshot (trunk):              
https://bugs.php.net/fix.php?id=60584&r=trysnapshottrunk
Fixed in SVN:                        
https://bugs.php.net/fix.php?id=60584&r=fixed
Fixed in SVN and need be documented: 
https://bugs.php.net/fix.php?id=60584&r=needdocs
Fixed in release:                    
https://bugs.php.net/fix.php?id=60584&r=alreadyfixed
Need backtrace:                      
https://bugs.php.net/fix.php?id=60584&r=needtrace
Need Reproduce Script:               
https://bugs.php.net/fix.php?id=60584&r=needscript
Try newer version:                   
https://bugs.php.net/fix.php?id=60584&r=oldversion
Not developer issue:                 
https://bugs.php.net/fix.php?id=60584&r=support
Expected behavior:                   
https://bugs.php.net/fix.php?id=60584&r=notwrong
Not enough info:                     
https://bugs.php.net/fix.php?id=60584&r=notenoughinfo
Submitted twice:                     
https://bugs.php.net/fix.php?id=60584&r=submittedtwice
register_globals:                    
https://bugs.php.net/fix.php?id=60584&r=globals
PHP 4 support discontinued:          
https://bugs.php.net/fix.php?id=60584&r=php4
Daylight Savings:                    https://bugs.php.net/fix.php?id=60584&r=dst
IIS Stability:                       
https://bugs.php.net/fix.php?id=60584&r=isapi
Install GNU Sed:                     
https://bugs.php.net/fix.php?id=60584&r=gnused
Floating point limitations:          
https://bugs.php.net/fix.php?id=60584&r=float
No Zend Extensions:                  
https://bugs.php.net/fix.php?id=60584&r=nozend
MySQL Configuration Error:           
https://bugs.php.net/fix.php?id=60584&r=mysqlcfg

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