parse_url doesn't returns a string and not an array for the query key about elephant.io HOT 2 CLOSED

/**
 * Parse an url into parts we may expect
 *
 * @return string[] information on the given URL
 */
protected function parseUrl($url)
{
    if (($server = parse_url($url)) === false)
    //  throw new ServerConnectionFailureException; ??
        return ['scheme' => 'http',
                'host'   => 'localhost',
                'path'   => 'socket.io',
                'secured' => false];

    if (!isset($server['port'])) {
        $server['port'] = 'https' === $server['scheme'] ? 443 : 80;
    }

    $server['secured'] = 'https' === $server['scheme'];

    return $server;
}