workerman实现在线聊天系统的实现原理与流程解析

<?php
require_once './vendor/autoload.php';

use WorkermanWorker;

// 创建一个Worker监听8090端口，使用http协议通讯
$worker = new Worker('websocket://0.0.0.0:8090');

// 设置进程数
$worker->count = 4;

// 当客户端与服务器建立连接时触发
$worker->onConnect = function ($connection) {
    echo "New connection established
";
};

// 当客户端发送消息时触发
$worker->onMessage = function ($connection, $data) use ($worker) {
    // 处理消息的代码
    // 解析消息，获取类型和内容
    $message = json_decode($data, true);
    $type = $message['type'];
    $content = $message['content'];

    // 根据消息类型进行相应的处理
    switch ($type) {
        case 'chat':
            // 处理聊天消息
            // 广播消息给其他连接的客户端
            foreach ($worker->connections as $conn) {
                if ($conn != $connection) {
                    $conn->send($content);
                }
            }
            break;
        default:
            // 其他类型的消息处理逻辑
            break;
    }
};

// 当客户端与服务器断开连接时触发
$worker->onClose = function ($connection) {
    echo "Connection closed
";
};

// 运行Worker
Worker::runAll();