``` <?php //創建Server對象，監聽 127.0.0.1:9501 端口 $server = new Swoole\Server('127.0.0.1', 9501); //監聽連接進入事件 $server->on('Connect', function ($server, $fd) { echo "Client: Connect.\n"; }); //監聽數據接收事件 $server->on('Receive', function ($server, $fd, $reactor_id, $data) { $server->send($fd, "Server: {$data}"); }); //監聽連接關閉事件 $server->on('Close', function ($server, $fd) { echo "Client: Close.\n"; }); //啟動服務器 $server->start(); ``` ``` telnet 127.0.0.1 9501 hello Server: hello ``` 參考：https://wiki.swoole.com/#/start/start_tcp_server