private function buildQueryUrlParameter($query)
    {
        switch ($query) {
            case is_array($query) && isset($query['lat']) && isset($query['lon']) && is_numeric($query['lat']) && is_numeric($query['lon']):
                return "lat={$query['lat']}&lon={$query['lon']}";
            case is_array($query) && is_numeric($query[0]):
                return 'id='.implode(',', $query);
            case is_numeric($query):
                return "id=$query";
            case is_string($query) && strpos($query, 'zip:') === 0:
                $subQuery = str_replace('zip:', '', $query);
                return 'zip='.urlencode($subQuery);
            case is_string($query):
                return 'q='.urlencode($query);
            default:
                throw new \InvalidArgumentException('Error: $query has the wrong format. See the documentation of OpenWeatherMap::getWeather() to read about valid formats.');
        }
    }