最近在学习Swoole,利用Swoole扩展让PHP生动了不少，本篇就来Swoole开发一款简易的IM聊天室
应用场景：实现简单的即时消息聊天室.
(一)扩展安装
pecl install swoole
安装完成后可以通过以下命令检测Swoole是否安装成功
php -m | grep swoole
(二)webSocket服务端代码
我们需要通过Laravel Command来实现,因为Swoole只能运行在PHP CLI模式下.
1.生成Command类
php artisan make:command SwooleServer
2.编写webSocket Server逻辑
<?php namespace App\Console\Commands; use Illuminate\Console\Command; class SwooleServer extends Command { /** * The name and signature of the console command. * * @var string */ protected $signature = 'swoole:server'; /** * The console command description. * * @var string */ protected $description = 'swoole websocket'; /** * Create a new command instance. * * @return void */ public function __construct() { parent::__construct(); } /** * Execute the console command. * * @return mixed */ public function handle() { //创建server $server = new \Swoole\WebSocket\Server("0.0.0.0", 9502); //连接成功回调 $server->on('open', function (\Swoole\WebSocket\Server $server, $request) { $this->info($request->fd . '链接成功'); }); //收到消息回调 $server->on('message', function (\Swoole\WebSocket\Server $server, $frame) { $content = $frame->data; //推送给所有链接 foreach ($server->connections as $fd){ $server->push($fd,$content); } }); //关闭链接回调 $server->on('close', function ($ser, $fd) { $this->info($fd . '断开链接'); }); $server->start(); } } 3.运行服务端
php artisan swoole:server (三)客户端实现
1.HTML+JS代码实现
<div style="width:600px;margin:0 auto;border:1px solid #ccc;"> <div id="content" style="overflow-y:auto;height:300px;"></div> <hr /> <div style="height:40px;background:white;"> <input type="text" class="form-control" id="message" placeholder="请输入内容"> <button type="button" class="btn btn-primary" onclick="sendMessage()">Primary</button> </div> </div> <script type="text/javascript"> if(window.WebSocket){ // 端口和ip地址对应不要写错 var webSocket = new WebSocket("ws://127.0.0.1:9502"); webSocket.onopen = function (event) { console.log('webSocket 链接成功'); }; //收到服务端消息回调 webSocket.onmessage = function (event) { var content = document.getElementById('content'); content.innerHTML = content.innerHTML.concat('<p style="margin-left:20px;height:20px;line-height:20px;">'+event.data+'</p>'); } var sendMessage = function(){ var data = document.getElementById('message').value; webSocket.send(data); } }else{ console.log("您的浏览器不支持WebSocket"); } </script> 通过以上的代码便完善一个基本的简易聊天室,但是距离一个真正完善的及时通讯系统构建还相差甚远,具体的理解和应用都写在了代码注释中,如有不能理解的地方,可以去查看Swoole官方文档以及Webscoket Api.
作者：理想啊
链接：https://www.jianshu.com/p/b5ee9f72fcd1
来源：简书