服务端：
<?php
use Swoole\WebSocket\Server;// 创建 HTTP 服务器
$server = new Server('127.0.0.1', 8888, SWOOLE_PROCESS, SWOOLE_SOCK_TCP);$server->on('start', function ($server) {//print_r($server);echo "Swoole websocket server is started at ws://127.0.0.1:8888\n";
});// 设置服务器配置
$server->set(['worker_num' => 4,'log_file' => './logfile.log',
]);// 监听 WebSocket 连接事件
$server->on('open', function (Server $server, $req) {echo "Connection open: {$req->fd}\n";
});// 监听 WebSocket 消息事件
$server->on('message', function (Server $server, $frame) {echo "接收到客户端数据：{$frame->data}\n";$server->push($frame->fd, "我收到你的消息了");
});// 监听 WebSocket 关闭事件
$server->on('close', function (Server $server, $fd) {echo "Connection close: {$fd}\n";
});// 启动服务器
$server->start();
客户端：
<?php
use Swoole\Coroutine;
use Swoole\Coroutine\Http\Client;
use function Swoole\Coroutine\run;run(function () {$client = new Client('127.0.0.1', 8888);$ret = $client->upgrade('/');if ($ret) {$client->push('测试消息，php版本的协程客户端');echo "收到服务端回复：".$client->recv()."\n";Coroutine::sleep(0.1);}
});
输出：
