From:             sarciszewski at knights dot ucf dot edu
Operating system: Debian
PHP version:      5.4.9
Package:          Apache2 related
Bug Type:         Bug
Bug description:POST value duplicated when passed to PHP

Description:
------------
Originally I thought this was an Apache bug since php://input held
duplicate POST data.
https://issues.apache.org/bugzilla/show_bug.cgi?id=54218 - However, Perl
correctly reads single values.

admin@summit:$uname -a
Linux summit 2.6.26-2-686-bigmem #1 SMP Sun Mar 4 23:05:22 UTC 2012 i686
GNU/Linux
admin@summit:$/usr/sbin/apache2 -v
Server version: Apache/2.2.16 (Debian)
Server built:   Sep  9 2012 21:17:33
admin@summit:$ /usr/bin/php5 -v
PHP 5.4.9-1~dotdeb.0 (cli) (built: Nov 26 2012 04:24:47)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies

Test script:
---------------
<?
if(!empty($_POST)) {
  header("Content-Type: text/plain");
  echo file_get_contents('php://input');
  echo "\n=========================================================\n";
  var_dump($_POST); exit;
}
?>
This duplicates:
<form method="post" target="_blank">
    <input type="text" name="menu" value="Blah" />
    <input type="submit" />
</form>
<p>This doesn't:</p>
<form method="post" target="_blank">
    <input type="text" name="menu" value="Blah" />
    <input type="text" name="second" value="Second value" />
    <input type="submit" />
</form>

Expected result:
----------------
Output (first button):
menu=Blah
=========================================================
array(1) {
  ["menu"]=>
  string(4) "Blah"
}
Output (second button):
menu=Blah&second=Second+value
=========================================================
array(2) {
  ["menu"]=>
  string(4) "Blah"
  ["second"]=>
  string(12) "Second value"
}

Actual result:
--------------
Output (first button):
menu=Blahmenu=Blah
=========================================================
array(1) {
  ["menu"]=>
  string(13) "Blahmenu=Blah"
}
Output (second button):
menu=Blah&second=Second+valuemenu=Blah&second=Second+value
=========================================================
array(2) {
  ["menu"]=>
  string(4) "Blah"
  ["second"]=>
  string(12) "Second value"
}

-- 
Edit bug report at https://bugs.php.net/bug.php?id=63637&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=63637&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=63637&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=63637&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63637&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63637&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63637&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63637&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63637&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63637&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63637&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=63637&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=63637&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63637&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63637&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63637&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63637&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63637&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63637&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63637&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63637&r=mysqlcfg

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