Constantly running server
Good afternoon! I do not know where to write, so I write here. How to make the script was running constantly? Through crone fails.

``` php
$loop = LoopFactory: create();
$socket = new Reactor($loop);
$socket->listen(8990, 'ip');

$server = new IoServer(new HttpServer(new WsServer(new Chat($loop))), $socket, $loop);
$server->run();
```
