public static function sendMediaGroup($chat_id = null, $media, $disable_notification = false, $reply_to_message_id = '')
    {
        self::initialize();
        $chat_id = $chat_id ? $chat_id : self::$channel_username;
        $params = compact('chat_id','media', 'disable_notification', 'reply_to_message_id');
        $result = self::sendRequest('sendMediaGroup', $params);
        return $result? $result : false;
    }
public static function sendMediaGroup($chat_id = null, $media, $disable_notification = false, $reply_to_message_id = '')
    {
        self::initialize();
        $chat_id = $chat_id ? $chat_id : self::$channel_username;
        $params = compact('chat_id','media', 'disable_notification', 'reply_to_message_id');
        $result = self::sendRequest('sendMediaGroup', $params);
        return $result? $result : false;
    }
public static function sendMediaGroup ( $ chat_id = null , $ media , $ disable_notification = false , $ reply_to_message_id = '' ) { self :: initialize ( ) ; $ chat_id = $ chat_id ? $ chat_id : self :: $ channel_username ; $ params = compact ( 'chat_id' , 'media' , 'disable_notification' , 'reply_to_message_id' ) ; $ result = self :: sendRequest ( 'sendMediaGroup' , $ params ) ; return $ result ? $ result : false ; }
Send media group

@param null $chat_id
@param $media
@param bool $disable_notification
@param string $reply_to_message_id
@return bool|mixed
Send media group