Swoole 初识

官方定义：

Swoole：重新定义PHP

PHP的异步、并行、高性能网络通信引擎，使用纯C语言编写，提供了PHP语言的异步多线程服务器，异步TCP/UDP网络客户端，异步MySQL，异步Redis，数据库连接池，AsyncTask，消息队列，毫秒定时器，异步文件读写，异步DNS查询。 Swoole内置了Http/WebSocket服务器端/客户端、Http2.0服务器端。
Swoole可以广泛应用于互联网、移动通信、企业软件、云计算、网络游戏、物联网、车联网、智能家居等领域。 使用PHP+Swoole作为网络通信框架，可以使企业IT研发团队的效率大大提升，更加专注于开发创新产品。

swoole 扩展安装及案例来源：http://wiki.swoole.com/wiki/page/6.html

简单案例：

<?php

class Server
{

    private $serv;

    public function __construct()
    {
        $this->serv = new swoole_server("0.0.0.0", 9501);
        $this->serv->set(array(
            'worker_num' => 8,
            'daemonize' => false,
            'max_request' => 10000,
            'dispatch_mode' => 2,
            'debug_mode' => 1
        ));

        $this->serv->on('Start', array($this, 'onStart'));
        $this->serv->on('Connect', array($this, 'onConnect'));
        $this->serv->on('Receive', array($this, 'onReceive'));
        $this->serv->on('Close', array($this, 'onClose'));

        $this->serv->start();
    }

    public function onStart($serv)
    {
        echo "Start
";
    }

    public function onConnect($serv, $fd, $from_id)
    {
        $serv->send($fd, "Hello {$fd}!");
    }

    public function onReceive(swoole_server $serv, $fd, $from_id, $data)
    {
        echo "Get Message From Client {$fd}:{$data}
";
    }

    public function onClose($serv, $fd, $from_id)
    {
        echo "Client {$fd} close connection
";
    }

}

// 启动服务器
$server = new Server();

<?php

class Client
{

    private $client;

    public function __construct()
    {
        $this->client = new swoole_client(SWOOLE_SOCK_TCP);
    }

    public function connect()
    {
        if (!$this->client->connect("127.0.0.1", 9501, 1)) {
            echo "Error: {$fp->errMsg}[{$fp->errCode}]
";
        }
        $message = $this->client->recv();
        echo "Get Message From Server:{$message}
";

        fwrite(STDOUT, "请输入消息：");
        $msg = trim(fgets(STDIN));
        $this->client->send($msg);
    }

}

$client = new Client();
$client->connect();

分别打开两个终端输入：php server.php　　php client.php 即可看到效果！