Slim does not have a view layer like traditional MVC frameworks. Instead, Slim’s “view” is the HTTP response. Each Slim application route is responsible for preparing and returning an appropriate PSR-7 response object.

Slim’s “view” is the HTTP response.

That being said, the Slim project provides the Twig-View and PHP-View components to help you render templates to a PSR-7 Response object.

Other template systems

You are not limited to the Twig-View and PHP-View components. You can use any PHP template system provided that you ultimately write the rendered template output to the PSR-7 Response object’s body.