From: msn at t-network dot nl
Operating system: Windows XP SP2 Home Edition
PHP version: 5.1.4
PHP Bug Type: PCRE related
Bug description: $n backreference not working in pattern
Description:
------------
It's not possible to use the $n style backreference in the pattern of the
PCRE functions.
A pattern like this:
/\[(u|b|i|s)\](.*)\[\/$1\]/si
Should match [b]bold[/b]. However, it does not.
This pattern though:
/\[(u|b|i|s)\](.*)\[\/\\1\]/si
_Will_ match [b]bold[/b].
Reproduce code:
---------------
<?php
function parseUBB($sString)
{
// Bold, underline, italic and strike tags
$sString = preg_replace("/\[(u|b|i|s)\](.*)\[\/$1\]/si", "<$1>$2</$1>",
$sString);
return ($sString);
}
echo parseUBB("[b]testb[/b], [u]testu[/u], [i]testi[/i]");
?>
Expected result:
----------------
<b>testb</b>, <u>testu</u>, <i>testi</i>
Actual result:
--------------
[b]test[/b], [u]testu[/u], [i]testi[/i]
--
Edit bug report at http://bugs.php.net/?id=38135&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=38135&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=38135&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=38135&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=38135&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=38135&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=38135&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=38135&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=38135&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=38135&r=support
Expected behavior: http://bugs.php.net/fix.php?id=38135&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=38135&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=38135&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=38135&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=38135&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=38135&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=38135&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=38135&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=38135&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=38135&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=38135&r=mysqlcfg
