note 52102 added to function.preg-split

In response to tehjahn: To check if a username has valid chars, you can simply use a regular expression match - your example could be replaced by: $userstr = "the jahn!"; if (preg_match("/^[a-zA-Z0-9]*$/", $userstr) == false) echo 'Invalid characters found in username'; else echo 'No invalid characters detected...'; ---- Manual Page -- http://www.php.net/manual/en/function.preg-split.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+52102 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+52102&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+52102&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+52102&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+52102&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+52102&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+52102&report=yes Search -- http://master.php.net/manage/user-notes.php