From: mw at lanfear dot com
Operating system: Windows XP SP1 Only
PHP version: 5.0.3
PHP Bug Type: *Regular Expressions
Bug description: mbregex fails to recognise word boundary markers [[:<:]] on
Windows XP
Description:
------------
The mbregex compiler appears to have a bug in it via which it cannot
compile the word boundary markers [[:<:]] and [[:>:]] on the Windows
version of PHP. (IIS5.1, PHP 5.0.3)
On the Unix version of PHP, these boundaries work fine, with or without
the mbstring and mbregex extension enabled, and the Windows versions of
PHP will also recognise these markers IFF the mbstring.dll is disabled.
Given the string:
$strr "This is an ip address: 192.168.1.1 ..."
The following:
ereg("[[:<:]][0-9]+\.[0-9]+\.[0-9]+\.[0-9]+[[:>:]]", $strr, $regex);
will generate the following error in windows (IIS5.1, PHP 5.0.3), provided
mbstring is enabled:
Warning: mb_ereg() [function.mb-ereg]: mbregex compile err: invalid POSIX
bracket type in c:\Inetpub\wwwroot\regex_test.php on line 5
NULL
Reproduce code:
---------------
<?php
$ipaddrs = "192.168.12.22, then followed by 192.168.1.1";
ereg("[[:<:]][0-9]+\.[0-9]+\.[0-9]+\.[0-9]+[[:>:]]", $ipaddrs, $regex);
var_dump($regex);
?>
Expected result:
----------------
array(1) { [0]=> string(13) "192.168.12.22" }
Actual result:
--------------
Warning: mb_ereg() [function.mb-ereg]: mbregex compile err: invalid POSIX
bracket type in c:\Inetpub\wwwroot\regex_test.php on line 5
NULL
--
Edit bug report at http://bugs.php.net/?id=31576&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31576&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=31576&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=31576&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=31576&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=31576&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=31576&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=31576&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=31576&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=31576&r=support
Expected behavior: http://bugs.php.net/fix.php?id=31576&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=31576&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=31576&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=31576&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31576&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=31576&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=31576&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=31576&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=31576&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=31576&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=31576&r=mysqlcfg
