<?php
    //创建WebSocket Server对象，监听0.0.0.0:9502端口
    $ws = new Swoole\WebSocket\Server('0.0.0.0', 9502);

    //监听WebSocket连接打开事件
    $ws->on('Open', function ($ws, $request) {
        $ws->push($request->fd, "hello, welcome\n");
    });

    //监听WebSocket消息事件
    $ws->on('Message', function ($ws, $frame) {
        echo "Message: {$frame->data}\n";
        $ws->push($frame->fd, "server: {$frame->data}");
    });

    //监听WebSocket连接关闭事件
    $ws->on('Close', function ($ws, $fd) {
        echo "client-{$fd} is closed\n";
    });

    $ws->start();