- substr: documentation ( source)
- microtime: documentation ( source)
- mt_rand: documentation ( source)
- hash: documentation ( source)
<?php
$gameKey = substr ("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", mt_rand( 0 ,50 ), 1) . substr (hash("sha512", "lol" . microtime()), 0, 44);
?>