server.php代码如下：

     serv = new swoole_server('0.0.0.0', 8888);        //配置参数        $this->serv->set(array(            'worker_num' => 4,            'daemonize' => 0,        ));        //注册回调函数        $this->serv->on('start', array($this, 'start'));        $this->serv->on('connect', array($this, 'connect'));        $this->serv->on('receive', array($this, 'receive'));        $this->serv->on('close', array($this, 'close'));        //启动服务        $this->serv->start();    }    public function start($serv) {        echo "start \n";    }    //有客户端连接时    public function connect($serv, $fd) {        echo "connect \n";        $serv->send($fd, "hello \n");    }    public function close($serv, $fd) {        echo "close \n";    }    public function receive($serv, $fd, $from_id, $data) {        echo "get message {$fd} : {$data} \n";        //向客户端发送信息        $serv->send($fd, $data . "\n");    }}$serv = new EchoServer();

client.php代码如下：

     client = new swoole_client(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC);        $this->client->on('connect', array($this, 'connect'));        $this->client->on('receive', array($this, 'receive'));        $this->client->on('close', array($this, 'close'));        $this->client->on('error', array($this, 'error'));        //连接服务端        $this->client->connect('0.0.0.0', 8888);    }    public function connect($client) {        echo "connect \n";    }    public function receive($client, $data) {        echo "server send: {$data}";        //向标准输出写入数据        fwrite(STDOUT, "请输入消息：");        //获取标准输入数据        $msg = trim(fgets(STDIN));        //向服务端发送数据        $client->send($msg);    }    public function close($client) {        echo "close \n";    }    public function error($client) {        echo "error \n";    }}$cli = new EchoClient();

然后分别运行这两个脚本

> /data/php56/bin/php server.php> /data/php56/bin/php client.php　　

运行结果如下：