Bug #62032 [NEW]: filter_var incorrectly strips characters from strings after "<"

From: Date: Mon, 14 May 2012 17:19:49 +0000
Subject: Bug #62032 [NEW]: filter_var incorrectly strips characters from strings after "<"
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-170436@lists.php.net to get a copy of this message 
From:             
Operating system: Mac OS X
PHP version:      5.4.3
Package:          Filter related
Bug Type:         Bug
Bug description:filter_var incorrectly strips characters from strings after "<"

Description:
------------
Noticed that for strings with < in them outside of html tags, filter_var
will 
strip out all characters that come after the <.

Test script:
---------------
<?php
$string = 'i want to say that 5 < 10, but it won\'t let me!';
$filtered_string = filter_var($string, FILTER_SANITIZE_STRING);

var_dump($filtered_string);

$filtered_string_strip_tags = strip_tags($string);

var_dump($filtered_string_strip_tags);

Expected result:
----------------
string(47) "i want to say that 5 < 10, but it won't let me!"
string(47) "i want to say that 5 < 10, but it won't let me!"

Actual result:
--------------
string(21) "i want to say that 5 "
string(47) "i want to say that 5 < 10, but it won't let me!"

-- 
Edit bug report at https://bugs.php.net/bug.php?id=62032&edit=1
-- 
Try a snapshot (PHP 5.4):            https://bugs.php.net/fix.php?id=62032&r=trysnapshot54
Try a snapshot (PHP 5.3):            https://bugs.php.net/fix.php?id=62032&r=trysnapshot53
Try a snapshot (trunk):              https://bugs.php.net/fix.php?id=62032&r=trysnapshottrunk
Fixed in SVN:                        https://bugs.php.net/fix.php?id=62032&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62032&r=needdocs
Fixed in release:                    https://bugs.php.net/fix.php?id=62032&r=alreadyfixed
Need backtrace:                      https://bugs.php.net/fix.php?id=62032&r=needtrace
Need Reproduce Script:               https://bugs.php.net/fix.php?id=62032&r=needscript
Try newer version:                   https://bugs.php.net/fix.php?id=62032&r=oldversion
Not developer issue:                 https://bugs.php.net/fix.php?id=62032&r=support
Expected behavior:                   https://bugs.php.net/fix.php?id=62032&r=notwrong
Not enough info:                     https://bugs.php.net/fix.php?id=62032&r=notenoughinfo
Submitted twice:                     https://bugs.php.net/fix.php?id=62032&r=submittedtwice
register_globals:                    https://bugs.php.net/fix.php?id=62032&r=globals
PHP 4 support discontinued:          https://bugs.php.net/fix.php?id=62032&r=php4
Daylight Savings:                    https://bugs.php.net/fix.php?id=62032&r=dst
IIS Stability:                       https://bugs.php.net/fix.php?id=62032&r=isapi
Install GNU Sed:                     https://bugs.php.net/fix.php?id=62032&r=gnused
Floating point limitations:          https://bugs.php.net/fix.php?id=62032&r=float
No Zend Extensions:                  https://bugs.php.net/fix.php?id=62032&r=nozend
MySQL Configuration Error:           https://bugs.php.net/fix.php?id=62032&r=mysqlcfg

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