#49036 [NEW]: preg_replace error when using \W

From: gvdefence-ncr at yahoo dot it Operating system: WXP PHP version: 5.2.10 PHP Bug Type: PCRE related Bug description: preg_replace error when using \W Description: ------------ According to regexp sintax [\W] is identical to [^A-Za-z0-9_] (can see: http://msdn.microsoft.com/en-us/library/1400241x(VS.85).aspx) But preg_replace does not seem to work the same way. Reproduce code: --------------- <?php //according to regexp sintax [\W] is identical to [^A-Za-z0-9_] (can see: http://msdn.microsoft.com/en-us/library/1400241x(VS.85).aspx) $result1 = preg_replace('/[^A-Za-z0-9_]*/', '', "test àèìòù test"); $result2 = preg_replace('/[\W]*/', '', "test àèìòù test"); echo "<pre>" . $result1 . "</pre>"; //ok, it shows: "testtest" echo "<pre>" . $result2 . "</pre>" //wrong it shows: "testàèìòùtest" ?> Expected result: ---------------- testtest testtest Actual result: -------------- testtest testàèìòùtest -- Edit bug report at http://bugs.php.net/?id=49036&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49036&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49036&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49036&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49036&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49036&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49036&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49036&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49036&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49036&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49036&r=support Expected behavior: http://bugs.php.net/fix.php?id=49036&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49036&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49036&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49036&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49036&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49036&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49036&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49036&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49036&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49036&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49036&r=mysqlcfg