Bug #60707 [NEW]: max_input_vars allows one extra var

From: Date: Wed, 11 Jan 2012 05:15:13 +0000
Subject: Bug #60707 [NEW]: max_input_vars allows one extra var
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-166341@lists.php.net to get a copy of this message
From:             vrana
Operating system: Irrelevant
PHP version:      5.3.9
Package:          Variables related
Bug Type:         Bug
Bug description:max_input_vars allows one extra var

Description:
------------
Setting max_input_vars to N allows N+1 variables.

Test script:
---------------
<form action="" method="post">
<?php
$max_input_vars = ini_get('max_input_vars');
for ($i=0; $i < $max_input_vars + 2; $i++) {
	echo "<input type='hidden' name='a$i' value='$i'>\n";
}
var_dump($max_input_vars);
var_dump(count($_POST));
?>
<input type="submit">
</form>


Expected result:
----------------
string(4) "1000"
int(1000)


Actual result:
--------------
string(4) "1000"
int(1001)


-- 
Edit bug report at https://bugs.php.net/bug.php?id=60707&edit=1
-- 
Try a snapshot (PHP 5.4):            https://bugs.php.net/fix.php?id=60707&r=trysnapshot54
Try a snapshot (PHP 5.3):            https://bugs.php.net/fix.php?id=60707&r=trysnapshot53
Try a snapshot (trunk):              https://bugs.php.net/fix.php?id=60707&r=trysnapshottrunk
Fixed in SVN:                        https://bugs.php.net/fix.php?id=60707&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=60707&r=needdocs
Fixed in release:                    https://bugs.php.net/fix.php?id=60707&r=alreadyfixed
Need backtrace:                      https://bugs.php.net/fix.php?id=60707&r=needtrace
Need Reproduce Script:               https://bugs.php.net/fix.php?id=60707&r=needscript
Try newer version:                   https://bugs.php.net/fix.php?id=60707&r=oldversion
Not developer issue:                 https://bugs.php.net/fix.php?id=60707&r=support
Expected behavior:                   https://bugs.php.net/fix.php?id=60707&r=notwrong
Not enough info:                     https://bugs.php.net/fix.php?id=60707&r=notenoughinfo
Submitted twice:                     https://bugs.php.net/fix.php?id=60707&r=submittedtwice
register_globals:                    https://bugs.php.net/fix.php?id=60707&r=globals
PHP 4 support discontinued:          https://bugs.php.net/fix.php?id=60707&r=php4
Daylight Savings:                    https://bugs.php.net/fix.php?id=60707&r=dst
IIS Stability:                       https://bugs.php.net/fix.php?id=60707&r=isapi
Install GNU Sed:                     https://bugs.php.net/fix.php?id=60707&r=gnused
Floating point limitations:          https://bugs.php.net/fix.php?id=60707&r=float
No Zend Extensions:                  https://bugs.php.net/fix.php?id=60707&r=nozend
MySQL Configuration Error:           https://bugs.php.net/fix.php?id=60707&r=mysqlcfg



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