voku\helper\AntiXSS::xss_hash PHP Method

    private function xss_hash()
    {
        if ($this->_xss_hash === null) {
            $rand = Bootup::get_random_bytes(16);
            if (!$rand) {
                $this->_xss_hash = md5(uniqid(mt_rand(), true));
            } else {
                $this->_xss_hash = bin2hex($rand);
            }
        }
        return $this->_xss_hash;
    }