#39364 [NEW]: mb_strstr() behaviour differs from strstr()

From: christoph at ziegenberg dot de Operating system: Win XP SP 2 PHP version: 5.2.0 PHP Bug Type: mbstring related Bug description: mb_strstr() behaviour differs from strstr() Description: ------------ as described in the more important bug #39361 i compared strstr() and mb_strstr(). mb_strstr() produces the following error when using an empty haystack: Warning: mb_strstr() [function.mb-strstr]: Empty haystack in X on line Y but strstr() doesn't. Reproduce code: --------------- <?php strstr('', ','); mb_strstr('', ','); ?> Expected result: ---------------- no error message - because haystack does not contain needle, so the function should return false, as described in the documentation. the different behavior produces a lot of errors when using function overloading (although i know using it is not a good idea... ;). Actual result: -------------- Warning: mb_strstr() [function.mb-strstr]: Empty haystack in X on line Y -- Edit bug report at http://bugs.php.net/?id=39364&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39364&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39364&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39364&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=39364&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=39364&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=39364&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=39364&r=needscript Try newer version: http://bugs.php.net/fix.php?id=39364&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=39364&r=support Expected behavior: http://bugs.php.net/fix.php?id=39364&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=39364&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=39364&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=39364&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39364&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=39364&r=dst IIS Stability: http://bugs.php.net/fix.php?id=39364&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=39364&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=39364&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=39364&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=39364&r=mysqlcfg