Routing to specific controller if class doesn't exist?

[eluser]Unknown[/eluser]
I figured it out because of course as soon as I posted it I remembered the term for it haha!

Code:

$url_parts = explode('/',  strtolower($_SERVER['REQUEST_URI']));


$reserved_routes = array("club", "login", "profile", "welcome","home");
if (!in_array($url_parts[2], $reserved_routes)) {    
    $route['([a-zA-Z0-9_-]+)'] = "home/view/$1";
}