public static function set($key, $value = false)
    {

        /**
         * Check whether session is set in array or not
         * If array then set all session key-values in foreach loop
         */

        self::setPrefix();

        if (is_array($key) && $value === false) {

            foreach ($key as $name => $value) {
                $_SESSION[self::$_sessionPrefix . $name] = $value;
            }

        } else {
            $_SESSION[self::$_sessionPrefix . $key] = $value;
        }

    }