public static function isLogged() { if (isset($_SESSION['user'])) { return $_SESSION['user']['email']; } elseif (isset($_COOKIE['user'])) { $key = '1291tramvai1q1avtobus'; $decrypted = FunctionLibrary::decrypted($_COOKIE['user'], $key); return $decrypted; } else { FunctionLibrary::redirectTo('/'); } }