swoole 创建tcp服务器

<?php
/**
 * 创建tcp服务器
 * Date: 2019/1/15
 */
$serv = new swoole_server('127.0.0.1', 9501);

// 监听连接进入事件
$serv->on('connect', function ($serv, $fd) {
    echo "Client: Connect.\n";
});

// 监听数据接收事件
$serv->on('receive', function ($serv, $fd, $from_id, $data) {
    $serv->send($fd, "Server: " . $data);
});

// 监听连接关闭事件
$serv->on('close', function ($serv, $fd) {
    echo "Client: Close.\n";
});

// 启动服务器
$serv->start();

$ sudo /usr/local/php/bin/php server.php 
Client: Connect.

$ sudo netstat -ntlp | grep php     
tcp        0      0 127.0.0.1:9501          0.0.0.0:*               LISTEN      21314/php  

$ telnet 127.0.0.1 9501
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
hello
Server: hello

$ kill 21314