Bug #54506 [Bgs]: Regex Unicode problem

From: Date: Mon, 11 Apr 2011 18:47:27 +0000
Subject: Bug #54506 [Bgs]: Regex Unicode problem
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-160106@lists.php.net to get a copy of this message 
Edit report at http://bugs.php.net/bug.php?id=54506&edit=1

 ID:                 54506
 User updated by:    chsavio at gmail dot com
 Reported by:        chsavio at gmail dot com
 Summary:            Regex Unicode problem
 Status:             Bogus
 Type:               Bug
 Package:            PCRE related
 Operating System:   Centos 2.6.18
 PHP Version:        5.3SVN-2011-04-08 (snap)
 Block user comment: N
 Private report:     N

 New Comment:

Missed the PCRE modifiers section of the documentation. Sorry about
that. Thanks for your time.


Previous Comments:
------------------------------------------------------------------------
[2011-04-11 16:52:23] johannes@php.net

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php

Use the /u modifier.

------------------------------------------------------------------------
[2011-04-11 16:39:27] chsavio at gmail dot com

Description:
------------
Combinations of unicode characters in brackets appear to match a
completely incorrect character. We're using PHP 5.3.3 (cli). And I was
able to reproduce the problem on a PHP regex test site.

http://www.pagecolumn.com/tool/pregtest.htm

Test script:
---------------
http://www.pagecolumn.com/tool/pregtest.htm

<?php
$ptn = "/[ÜŸ]/";
$str = "ø";
preg_match($ptn, $str, $matches);
print_r($matches);
?>

Should be the equivalent of the following, but is not

<?php
$ptn = "/Ü|Ÿ/";
$str = "ø";
preg_match($ptn, $str, $matches);
print_r($matches);
?>

Expected result:
----------------
I'd expect no matches.

Array
(
)

Actual result:
--------------
I get a match.

Array
(
    [0] => ø
)


------------------------------------------------------------------------



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Edit this bug report at http://bugs.php.net/bug.php?id=54506&edit=1

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