如何使用PHP来实现消息推送功能

composer require workerman/workerman

require_once __DIR__ . '/vendor/autoload.php';

use Workerman\Worker;
use Workerman\Lib\Timer;

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

//配置参数
$ws_worker->count = 4;
$ws_worker->name = 'WebSocket';

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

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

//消息事件
$ws_worker->onMessage = function($connection, $data)
{
    echo "Received: ".$data."\n";
};

Worker::runAll();

php websocket.php start

foreach($ws_worker->connections as $connection)
{
    $connection->send('Welcome!');
}

composer require cboden/ratchet

use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;

require dirname(__DIR__) . '/vendor/autoload.php';

class Pusher implements MessageComponentInterface
{
    private $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, $msg)
    {
        echo "New message received! ({$from->resourceId})\n";
        $numRecv = count($this->clients) - 1;
        foreach ($this->clients as $client) 
        {
            if ($from !== $client)
            {
                $client->send($msg);
            }
        }
    }
 
    public function onClose(ConnectionInterface $conn)
    {
        $this->clients->detach($conn);
        echo "Connection {$conn->resourceId} has disconnected\n";
    }
 
    public function onError(ConnectionInterface $conn, \Exception $e)
    {
        echo "An error has occurred: {$e->getMessage()}\n";
        $conn->close();
    }
}
 
$server = IoServer::factory(
    new HttpServer(
        new WsServer(
            new Pusher()
        )
    ),
    19920//端口号
);
$server->run();

php websocket.php

$this->clients->remove($conn);
foreach ($this->clients as $client) 
{
    if ($from !== $client)
    {
        $msg = $from->resourceId.":".$msg;
        $client->send($msg);
    }
}