gistfile1.php

<?php

use React\EventLoop\Factory;
use React\Socket\Server;

class Server
{
    private $loop;
    private $socket;
    function __construct()
    {
        $this->loop = Factory::create();
        $this->socket = new Server($this->loop);
        $this->socket->listen(12346, '127.0.0.1');
        echo "listening on 127.0.0.1:12346\n";
    }
    function start()
    {
        $this->loop->addTimer(2, array($this, 'stop'));
        $this->loop->run();
    }
    function stop()
    {
        echo "stopping\n";
        $this->socket->shutdown();
        $this->loop->stop();
    }
}

$server = new Server();
$server->start();

$server = new Server();
$server->start();