安装swoole

以mac操作系统为例，如果你是mac新手，推荐阅读程序员如何优雅使用mac

环境要求：php版本大于7.0

☁  swoole  php -v
PHP 7.1.19 (cli) (built: Jun 25 2018 10:42:21) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.1.19, Copyright (c) 1999-2018, by Zend Technologies

使用pecl安装swoole，安装过程中，会提示你是否需要安装某些扩展，可自主选择yes或no，如果是选择安装redis扩展，本机需要安装redis环境

pecl install swoole

选择redis扩展需要先安装相应的库

brew install redis
brew install hiredis

ide自动提示

默认情况下，phpstorm并不会自动提示swoole扩展包的相关函数，需要借助 swoole-ide-helper 实现自动提示

安装方法：

在项目的根目录执行：

composer require --dev "eaglewu/swoole-ide-helper:dev-master"

对于compoesr不熟悉的同学，请参阅这一次，真正掌握composer

接下来使用swoole搭建tcp，udp, http, websocket 服务，体验swoole的基本使用

tcp 服务

新建server.php

<?php
// 创建Server对象，监听 127.0.0.1:9501 端口
$serv = new swoole_server("127.0.0.01", 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();

服务端启动：

☁  server [master] ⚡ php server.php
[2018-04-26 09:08:59 @96245.0]  TRACE   Create swoole_server host=127.0.0.01, port=9501, mode=3, type=1

telnet 测试连接

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

退出telnet的方式：ctrl+], 然后再按 ctrl+d

udp 服务

新建udp_server.php

<?php
// 创建UDP Server对象
$serv = new swoole_server('127.0.0.1', 9502, SWOOLE_PROCESS, SWOOLE_SOCK_UDP);

// 监听数据接收事件
$serv->on('Packet', function ($serv, $data, $clientInfo) {
    $serv->sendto($clientInfo['address'], $clientInfo['port'], 'Server ' . $data);
    var_dump($clientInfo);
});

// 启动服务器
$serv->start();

☁  server [master] ⚡ php udp_server.php
[2018-04-26 09:18:10 @97828.0]  TRACE   Create swoole_server host=127.0.0.1, port=9502, mode=3, type=2

☁  ~  netcat -u 127.0.0.1 9502
hello
Server hello

http 服务

<?php
$http = new swoole_http_server('0.0.0.0', 9502);

$http->on('request', function ($request, $response) {
$response->header("Content-Type", "text/html; charset=utf-8");
$time = date('Y-m-d H:i:s', time());
$response->end("<h1>{$time}--这是swoole提供的http服务，修改代码后要重启服务才能生效</h1>");
});

$http->start();

☁  http  php http_server.php
[2018-07-27 09:25:05 @53999.0]  TRACE   Create swoole_server host=0.0.0.0, port=9502, mode=3, type=1

浏览器访问：http://127.0.0.1:9502/

swoole-http

websocket 服务

ws 服务端

新建server.php文件

<?php
class Ws {
    CONST HOST = "0.0.0.0";
    CONST PORT = 8812;

    public $ws = null;

    public function __construct()
    {
        $this->ws = new swoole_websocket_server(self::HOST, self::PORT);
        $this->ws->set(
            [
                'worker_num' => 2,
            ]
        );

        $this->ws->on('open', [$this, 'onOpen']);
        $this->ws->on('message', [$this, 'onMessage']);
        $this->ws->on('close', [$this, 'onClose']);

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


    /**
     * 监听连接事件
     * @param $ws
     * @param $request
     */
    public function onOpen($ws, $request)
    {
        echo "建立连接，客户端id：{$request->fd}\n";
    }


    /**
     * 监听消息事件
     * @param $ws
     * @param $frame
     */
    public function onMessage($ws, $frame)
    {
        echo "客户端发送的数据: {$frame->data}\n";
        $pushData = date("Y-m-d H:i:s");
        $ws->push($frame->fd, "服务端推送的数据: {$pushData}");
    }

    /**
     * 监听关闭事件
     * @param $ws
     * @param $fd
     */
    public function onClose($ws, $fd)
    {
        echo "客户端：{$fd} 关闭了连接\n";
    }
}

$ws = new Ws();

ws 客户端

新建client.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>websocket client</title>
</head>
<body>
    <h1>swoole-websocket测试</h1>
    <script>
        var wsUrl = "ws://127.0.0.1:8812";
        var websocket = new WebSocket(wsUrl);

        websocket.onopen = function(evt) {
            websocket.send("我是客户端，我要连接服务端");
            console.log('连接成功');
        }

        websocket.onmessage = function(evt) {
            console.log("接收到的服务端信息: " + evt.data);
        }

        websocket.onclose = function(evt) {
            console.log("服务端关闭了");
        }

        websocket.onerror = function(evt, e) {
            console.log("出错了: " + evt.data);
        }
    </script>

</body>
</html>

结果显示

开启ws服务：

ws server

浏览器打开ws_client.html文件:

ws client

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2018年swoole实战1-初识swoole