Bug #54506 [NEW]: Regex Unicode problem

From: Operating system: Centos 2.6.18 PHP version: 5.3SVN-2011-04-08 (snap) Package: PCRE related Bug Type: Bug Bug description:Regex Unicode problem 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 ) -- Edit bug report at http://bugs.php.net/bug.php?id=54506&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54506&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54506&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54506&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54506&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54506&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54506&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54506&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54506&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54506&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54506&r=support Expected behavior: http://bugs.php.net/fix.php?id=54506&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54506&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54506&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54506&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54506&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54506&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54506&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54506&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54506&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54506&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54506&r=mysqlcfg