php獲取mac地址

[php]<?php @exec("ipconfig? ?/all",$array); for($Tmpa;$Tmpa<count($array);$Tmpa++){ if(eregi("Physical",$array[$Tmpa])){ $mac=explode(":",$array[$Tmpa]); echo? ?$mac[1];? ???//輸出mac地址 } } ?> [/php]