AltoRouter does not process requests for you so you are free to use the method you prefer. To help you get started, here's a simplified example using closures.
{% highlight php startinline %} $router = new AltoRouter(); // map homepage $router->map( 'GET', '/', function() { require __DIR__ . '/views/home.php'; }); // map user details page $router->map( 'GET', '/user/[i:id]/', function( $id ) { require __DIR__ . '/views/user-details.php'; }); // match current request url $match = $router->match(); // call closure or throw 404 status if( is_array($match) && is_callable( $match['target'] ) ) { call_user_func_array( $match['target'], $match['params'] ); } else { // no route was matched header( $_SERVER["SERVER_PROTOCOL"] . ' 404 Not Found'); } {% endhighlight %}