note 55731 added to function.preg-match

A simple function on how to create a string check input ( this might get handy esp for those who are doing HTML form) function is_ok_string($buff_string) { # your string OK standard $std_ok_string = "/[^0-9a-z_]/i" ; # regex if (!preg_match($std_ok_string, $buff_string)) { #string is OK return 1 ; } else { #string is *not* OK return 0 ; } } $str_chk= is_ok_string($user_name_input) ; ---- Manual Page -- http://www.php.net/manual/en/function.preg-match.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55731 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55731&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55731&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55731&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55731&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55731&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55731&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55731&report=yes Search -- http://master.php.net/manage/user-notes.php