Bug #53823 [NEW]: preg_replace: * qualifier on unicode replace garbacles the string

From: Operating system: Linux PHP version: 5.3SVN-2011-01-23 (snap) Package: Unicode Engine related Bug Type: Bug Bug description:preg_replace: * qualifier on unicode replace garbacles the string Description: ------------ When using the following test script to strip out all unicode except for letters the string becomes garbled when the * qualifier is added, the only surviving character that is intact is ú. Also, if you add \pN to the exceptions it additionally preserves the ó. Verified on 5.2,5.3 and 5.3-SNAP. Test script: --------------- echo preg_replace('/[^\pL\pM]*/iu', '', 'áéíóú'); or echo preg_replace('/[^\pL\pM\pN]*/iu', '', 'áéíóú'); Expected result: ---------------- áéíóú Actual result: -------------- ����ú or ���óú (if \pN is added to the exceptions). -- Edit bug report at http://bugs.php.net/bug.php?id=53823&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53823&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53823&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53823&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53823&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53823&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53823&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53823&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53823&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53823&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53823&r=support Expected behavior: http://bugs.php.net/fix.php?id=53823&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53823&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53823&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53823&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53823&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53823&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53823&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53823&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53823&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53823&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53823&r=mysqlcfg