GET /test/jatayu.php?fn=1&&cmd=whoami
Host : http://test.com
Authtoken : bb3b1a1f-0447-42a6-955a-88681fb88499

<?php
$r = unpack('v*', fread(fopen('/dev/random', 'r'),16));
$apiKey = sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
    $r[1], $r[2], $r[3], $r[4] & 0x0fff | 0x4000,
    $r[5] & 0x3fff | 0x8000, $r[6], $r[7], $r[8]);
echo $apiKey;
?>