php调用go rpc服务返回异常

[FireLustre]

go rpc 服务

func (s *SearchService) Ping(args string, reply *string) (err error) {
	fmt.Println("RPC.Ping")
	*reply = "Pong"
	return
}

php client 调用

$this->client->invoke('Ping', $params, new InvokeSettings(array('mode' => ResultMode::Normal)));

客户端创建

 new HproseClient('tcp://127.0.0.1:5559'), false)

运行结果

response read error