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php 实现websokect

2026-02-14 06:44:12PHP

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 完成：

composer require cboden/ratchet

创建一个简单的 WebSocket 服务器：

php 实现websokect

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();

使用 Swoole 扩展

Swoole 是一个高性能的 PHP 协程框架，内置 WebSocket 支持。首先需要安装 Swoole 扩展：

pecl install swoole

创建一个简单的 WebSocket 服务器：

php 实现websokect

$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 是另一个高性能的 PHP Socket 框架。安装 Workerman 可以通过 Composer 完成：

composer require workerman/workerman

创建一个简单的 WebSocket 服务器：

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

$worker = new Worker("websocket://0.0.0.0:2345");

$worker->onConnect = function (TcpConnection $connection) {
    echo "New connection: {$connection->id}\n";
};

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

$worker->onClose = function (TcpConnection $connection) {
    echo "Connection closed: {$connection->id}\n";
};

Worker::runAll();

客户端连接示例

无论使用哪种方法实现 WebSocket 服务器，客户端都可以通过 JavaScript 连接：

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

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('Connection closed');
};