From: soham dot mehta at gmail dot com
Operating system: x86_64 GNU/Linux
PHP version: 5.2.10
PHP Bug Type: PCRE related
Bug description: preg_match incorreclty matching vertical tab character
Description:
------------
In preg_match (and preg_replace), vertical tab character matches
characters other than itself. At the least, it matches ascii 10,11,12,13
and 133, when it should only match 11.
(Vertical tab has been nixed from PCRE - is that the cause?)
Reproduce code:
---------------
$wrong = chr(133); //can use any of 10,12,13 or 133
$x = preg_match('/\v/', $wrong, $matches, PREG_OFFSET_CAPTURE);
var_dump($matches);
$right = chr(11);
$x = preg_match('/\v/', $right, $matches, PREG_OFFSET_CAPTURE);
var_dump($matches);
Expected result:
----------------
array
empty
array
0 =>
array
0 => string ' ' (length=1)
1 => int 0
Actual result:
--------------
array
0 =>
array
0 => string '�' (length=1)
1 => int 0
array
0 =>
array
0 => string ' ' (length=1)
1 => int 0
--
Edit bug report at http://bugs.php.net/?id=49384&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=49384&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=49384&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=49384&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=49384&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=49384&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=49384&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=49384&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=49384&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=49384&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=49384&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=49384&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=49384&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=49384&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=49384&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49384&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=49384&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=49384&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=49384&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=49384&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=49384&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=49384&r=mysqlcfg
