note 25457 added to ref.strings

Here's a better IsAlphaNumeric() function than those listed above. It is an enhancement of jewfish@jewfish.net's suggestion. My example below allows you to pass $Type for allowing you to exclusively test alpha or numeric or both. It also allows you to pass $IgnoreChar to list what characters are permissible in the test, such as spaces, commas, quotes, etc. function IsAlphaNumeric($TestValue,$Type=3,$IgnoreChar="") { #Returns TRUE if $TestValue passes the AlphaNumeric test # of $Type, or FALSE if it doesn't pass it. #$Type allows for specifying what to test for: # 1 = Alpha Only # 2 = Numeric Only # 3 = AlphaNumeric #IgnoreChar is a string of values to ignore in the search # such as spaces, commas, quotes, etc. switch($Type){ case 1: return !(preg_match("/[^a-z,A-Z$IgnoreChar]/", $TestValue)); break; case 2: return !(preg_match("/[^0-9$IgnoreChar]/", $TestValue)); break; default: return !(preg_match("/[^a-z,A-Z,0-9$IgnoreChar]/", $TestValue)); } } -- http://www.php.net/manual/en/ref.strings.php http://master.php.net/manage/user-notes.php?action=edit+25457 http://master.php.net/manage/user-notes.php?action=delete+25457 http://master.php.net/manage/user-notes.php?action=reject+25457