Server running but nothing is displayed

[Lochemem Bruno Michael]

Hello,

I've attempted to use your package to set up a simple server to print a message, hello. I have failed to get any output on the console or in the browser. My code appears as follows:

$server = new Rx\Websocket\Server('127.0.0.1:8020');

$server->subscribe(
    function (Rx\Websocket\MessageSubject $subject) {
        $subject->subscribe(
            function ($message) {
                echo $message . PHP_EOL;
            }
        );

        $sayHello = function () use ($subject) {
            $subject->onNext('Hello');
        };

        $sayHello();

        \EventLoop\addPeriodicTimer(5, $sayHello);
    },
    function ($error) {
        echo "Connection Error";
    },
    function () {
        echo "Completed";
    }
);

I do however get a 500 server error.