/** * Set the user * * @param int $id The id of the user. * * @return Imperium */ static function caller($id) { self::$user = $id; self::$isGuest = false; /** Reset the user if false or null */ if ($id === false || $id === null) { self::$user = null; self::$isGuest = true; return __CLASS__; } return __CLASS__; }