slim 3 gist 3

index.php

$app->get('/hello[/[{name}]]', function ($req, $res, $args) {
    $get = $req->getQueryParams(); // Grab the Query Params... ["test" => "true"]

    if (!empty($args['name'])) {
        return $this->view->render($res, "hello.twig", ["name" => $args['name'], "test" => $get['test']]);
    } else {
        return $this->view->render($res, "hello.twig", ["name" => "", "test" => $get['test']]);
    }
});