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php 实现websocket

2026-01-29 19:19:08PHP

PHP 实现 WebSocket 的方法

PHP 可以通过多种方式实现 WebSocket 服务。以下是几种常见的方法：

使用 Ratchet 库

Ratchet 是一个流行的 PHP WebSocket 库，基于 ReactPHP 实现。安装 Ratchet 可以通过 Composer：

composer require cboden/ratchet

创建一个简单的 WebSocket 服务器：

php 实现websocket

use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;

class MyWebSocket implements MessageComponentInterface {
    public function onOpen(ConnectionInterface $conn) {
        echo "New connection: {$conn->resourceId}\n";
    }

    public function onMessage(ConnectionInterface $from, $msg) {
        echo "Received message: {$msg}\n";
        $from->send("Echo: {$msg}");
    }

    public function onClose(ConnectionInterface $conn) {
        echo "Connection closed: {$conn->resourceId}\n";
    }

    public function onError(ConnectionInterface $conn, \Exception $e) {
        echo "Error: {$e->getMessage()}\n";
        $conn->close();
    }
}

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

$server->run();

运行服务器后，可以通过 JavaScript 连接：

const socket = new WebSocket('ws://localhost:8080');
socket.onmessage = (e) => console.log(e.data);
socket.send('Hello WebSocket!');

使用 Swoole 扩展

Swoole 是一个高性能 PHP 扩展，内置 WebSocket 支持。安装 Swoole：

php 实现websocket

pecl install swoole

创建 WebSocket 服务器：

$server = new Swoole\WebSocket\Server("0.0.0.0", 9501);

$server->on('open', function (Swoole\WebSocket\Server $server, $request) {
    echo "Connection open: {$request->fd}\n";
});

$server->on('message', function (Swoole\WebSocket\Server $server, $frame) {
    echo "Received message: {$frame->data}\n";
    $server->push($frame->fd, "Echo: {$frame->data}");
});

$server->on('close', function ($server, $fd) {
    echo "Connection closed: {$fd}\n";
});

$server->start();

使用 Workerman 框架

Workerman 是另一个 PHP 异步框架，支持 WebSocket。安装 Workerman：

composer require workerman/workerman

创建 WebSocket 服务器：

use Workerman\Worker;
use Workerman\Connection\TcpConnection;

$ws_worker = new Worker("websocket://0.0.0.0:2346");

$ws_worker->onConnect = function ($connection) {
    echo "New connection\n";
};

$ws_worker->onMessage = function ($connection, $data) {
    echo "Received: {$data}\n";
    $connection->send("Echo: {$data}");
};

$ws_worker->onClose = function ($connection) {
    echo "Connection closed\n";
};

Worker::runAll();