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php websocket实现推送

2026-02-15 13:57:54PHP

PHP WebSocket 实现推送

WebSocket 是一种在单个 TCP 连接上进行全双工通信的协议，适用于实时推送场景。PHP 可以通过以下方法实现 WebSocket 推送：

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：

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

class MyWebSocket 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}\n";
    }

    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 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 客户端连接：

php websocket实现推送

const socket = new WebSocket('ws://localhost:8080');
socket.onmessage = (event) => {
    console.log('Message from server:', event.data);
};
socket.send('Hello, WebSocket!');

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 扩展：

pecl install swoole

创建 WebSocket 服务器：

php websocket实现推送

$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, $frame) {
    foreach ($server->connections as $fd) {
        if ($fd !== $frame->fd) {
            $server->push($fd, $frame->data);
        }
    }
});

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

$server->start();

客户端连接方式与 Ratchet 类似。

使用 Workerman 框架

Workerman 是另一个高性能 PHP Socket 框架。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->count = 4;

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

$ws_worker->onMessage = function ($connection, $data) use ($ws_worker) {
    foreach ($ws_worker->connections as $client) {
        if ($client !== $connection) {
            $client->send($data);
        }
    }
};

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

Worker::runAll();