/**
* Generate random string of specified length based off the given string of characters
*/
public static function rand_string($characters, $length)
{
$string = '';
mt_srand(Crypt::make_seed());
for ($p = 0; $p < $length; $p++) {
$string .= $characters[mt_rand(0, strlen($characters) - 1)];
}
return $string;
}
