Phalcon\Http\Client\Provider\Stream::isAvailable PHP Метод

    public static function isAvailable()
    {
        $wrappers = stream_get_wrappers();
        return in_array('http', $wrappers) && in_array('https', $wrappers);
    }

 public static function getProvider()
 {
     if (Curl::isAvailable()) {
         return new Curl();
     }
     if (Stream::isAvailable()) {
         return new Stream();
     }
     throw new ProviderException("There isn't any available provider");
 }