PHP中的WebSocket

<?php

$server = new SwooleWebsocketServer("127.0.0.1", 9502);

$server->on('open', function (SwooleWebSocketServer $server, $request) {
    echo "client {$request->fd} connected
";
});

$server->on('message', function (SwooleWebSocketServer $server, $frame) {
    echo "received message: {$frame->data}
";
    $server->push($frame->fd, "this is server");
});

$server->on('close', function (SwooleWebSocketServer $server, $fd) {
    echo "client {$fd} closed
";
});

$server->start();

<?php

require dirname(__DIR__) . '/vendor/autoload.php';

use RatchetMessageComponentInterface;
use RatchetConnectionInterface;
use RatchetWebSocketWsServer;
use RatchetHttpHttpServer;
use RatchetServerIoServer;

class EchoServer implements MessageComponentInterface {
    protected $clients;

    public function __construct() {
        $this->clients = new SplObjectStorage;
    }

    public function onOpen(ConnectionInterface $conn) {
        $this->clients->attach($conn);
        echo "New connection! ({$conn->resourceId})
";
    }

    public function onMessage(ConnectionInterface $from, $msg) {
        foreach ($this->clients as $client) {
            if ($from !== $client) {
                $client->send($msg);
            }
        }
    }

    public function onClose(ConnectionInterface $conn) {
        $this->clients->detach($conn);
        echo "Connection {$conn->resourceId} has disconnected
";
    }

    public function onError(ConnectionInterface $conn, Exception $e) {
        echo "An error has occurred: {$e->getMessage()}
";
        $conn->close();
    }
}

$server = IoServer::factory(
    new HttpServer(
        new WsServer(
            new EchoServer()
        )
    ),
    8080
);

$server->run();