public static function wikiSearch($keyword)
    {
        $apiurl = 'http://wikipedia.org/w/api.php?action=opensearch&search='.urlencode($keyword).'&format=xml&limit=1';
        $data = self::curl($apiurl);
        $xml = simplexml_load_string($data);
        if ((string) $xml->Section->Item->Description) {
            $array = [];
            $array['title'] = (string) $xml->Section->Item->Text;
            $array['description'] = (string) $xml->Section->Item->Description;
            $array['url'] = (string) $xml->Section->Item->Url;
            if (isset($xml->Section->Item->Image)) {
                $img = (string) $xml->Section->Item->Image->attributes()->source;
                $array['image'] = str_replace('/50px-', '/200px-', $img);
            }

            return $array;
        }

        return false;
    }