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php实现websocket

2026-02-13 12:15:32PHP

PHP 实现 WebSocket 的方法

WebSocket 是一种全双工通信协议，允许客户端和服务器之间进行实时数据传输。PHP 可以通过以下几种方式实现 WebSocket 功能：

使用 Ratchet 库

Ratchet 是一个流行的 PHP WebSocket 库，基于 ReactPHP 实现，适合构建实时应用。

安装 Ratchet：

composer require cboden/ratchet

创建 WebSocket 服务器：

use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;

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

    public function onMessage(ConnectionInterface $conn, $msg) {
        echo "Received message: $msg\n";
        $conn->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 = new \Ratchet\App('localhost', 8080);
$server->route('/ws', new MyWebSocket());
$server->run();

启动服务器：

php server.php

使用 Swoole 扩展

Swoole 是一个高性能 PHP 协程框架，内置 WebSocket 服务器支持。

安装 Swoole：

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();

启动服务器：

php server.php

使用 Workerman 框架

Workerman 是另一个高性能 PHP Socket 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) {
    $connection->send("Echo: $data");
};

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

Worker::runAll();

启动服务器：

php server.php start

客户端连接示例

使用 JavaScript 连接 WebSocket 服务器：

php实现websocket

const socket = new WebSocket('ws://localhost:8080/ws');

socket.onopen = function() {
    console.log('Connected');
    socket.send('Hello Server');
};

socket.onmessage = function(event) {
    console.log('Message from server:', event.data);
};

socket.onclose = function() {
    console.log('Disconnected');
};