PHP和WebSocket: 构建高性能的实时聊天平台

composer require cboden/ratchet

use AppHttpControllersChatController;
use RatchetHttphttpserver;
use RatchetServeriOServer;
use RatchetWebSocketWsServer;

Route::get('/chat', function () {
    $server = IoServer::factory(
        new HttpServer(
            new WsServer(
                new ChatController()
            )
        ),
        8080
    );
    $server->run();
})->name('chat');

namespace AppHttpControllers;

use RatchetMessageComponentInterface;
use RatchetConnectionInterface;

class ChatController 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 $client) {
            if ($client !== $from) {
                $client->send($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();
    }
}

var conn = new WebSocket("ws://localhost:8080/chat");

conn.onmessage = function (event) {
    // 接收到聊天信息后的处理
};

function sendChatMessage(message) {
    conn.send(message);
}