Bug #63637 [Com]: POST value duplicated when passed to PHP

From: Date: Mon, 03 Dec 2012 10:51:28 +0000
Subject: Bug #63637 [Com]: POST value duplicated when passed to PHP
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=63637&edit=1

 ID:                 63637
 Comment by:         sarciszewski at knights dot ucf dot edu
 Reported by:        sarciszewski at knights dot ucf dot edu
 Summary:            POST value duplicated when passed to PHP
 Status:             Feedback
 Type:               Bug
 Package:            Apache2 related
 Operating System:   Debian
 PHP Version:        5.4.9
 Block user comment: N
 Private report:     N

 New Comment:

Whatever gets installed via:
apt-get install php5 php5-common php5-mysql php5-cli php5-curl

From the dotdeb repository (which offers 5.4)


Previous Comments:
------------------------------------------------------------------------
[2012-12-03 09:32:16] mike@php.net

What PHP extensions are loaded?

------------------------------------------------------------------------
[2012-11-28 18:03:39] sarciszewski at knights dot ucf dot edu

Downgrading to PHP 5.3.19 resolved the issue. Is there something in the code that links Apache2 and
PHP 5.4.9 that could be causing this problem? It wasn't causing issues in 5.4.8

------------------------------------------------------------------------
[2012-11-28 17:24:01] sarciszewski at knights dot ucf dot edu

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"
}


------------------------------------------------------------------------



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