i saw this simple code which echo's a MAC address but only on the server side, is it possible to get the page visitor's MAC address with these?
<?php
ob_start();
system('ipconfig /all');
$mycom=ob_get_contents();
ob_clean();
$findme = "Physical";
$pmac = strpos($mycom, $findme);
$mac=substr($mycom,($pmac+36),17);
echo 'Your MAC is '.$mac;
?>