Hi, Thursday, October 27, 2005, 3:15:30 AM, you wrote: JG> I am having a problem with a couple of function I have written to check JG> for a type of string, attempt to fix it and pass it back to the main JG> function. Any help is appreciated. I would do it with a small class like this: <?php class mac{ var $mac=''; var $is_valid = false; function mac($mac){ $mac = preg_replace('/[^0-9A-F]/','',strtoupper($mac)); if($this->is_valid = preg_match('/^(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})$/',$mac,$parts)){ array_shift($parts); //lose the first bit $this->mac = implode(':',$parts); } } } //test $mac_list = array("00-aa-11-bb-22-cc","00:aa:11:bb:22:cc","zz:00:11:22:ff:xx","00 aa 11 bb 22 cc"); foreach($mac_list as $mac){ $mactest = new mac($mac); echo "In:$mac"; if($mactest->is_valid){ echo " valid $mactest->mac\n"; }else{ echo " NOT valid\n"; } } -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php