PHP实时通信功能在在线协同编辑系统中的应用探讨

composer require cboden/ratchet

use RatchetMessageComponentInterface;
use RatchetConnectionInterface;

class MyWebSocket implements MessageComponentInterface
{
    protected $clients;

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

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

    public function onMessage(ConnectionInterface $from, $msg)
    {
        // 处理收到的消息
        // ...
        // 广播给所有客户端
        foreach ($this->clients as $client) {
            $client->send($msg);
        }
    }

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

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

$app = new RatchetApp('localhost', 8080);
$app->route('/ws', new MyWebSocket, ['*']);
$app->run();

const socket = new WebSocket('ws://localhost:8080/ws');
socket.onopen = function() {
    console.log('WebSocket connected');
};

socket.onmessage = function(event) {
    const message = event.data;
    // 处理服务器发送的消息
    // ...
};

function handleDocumentChange(change) {
    // 处理文档的改动
    // ...
    // 将变化发送给WebSocket服务器
    socket.send(JSON.stringify(change));
}