Cara mengambil Mac Address PC Windows OS menggunakan PHP

Berikut script PHP untuk mengambil Mac Address PC atau Laptop:

<?php

ob_start();

  system("ipconfig /all"); //Execute external program to display output

  $mycom = ob_get_contents(); // Capture the output into a variable

  ob_clean();

  $findme = "Physical";

  $pmac = strpos($mycom, $findme); // Find the position of Physical text

  $mac = substr($mycom, ($pmac + 36), 17);

echo $mac;

?>