Dynamic Pages routes in Laravel

The question seems realy simple, but I can't figure it out... How do you achieve slug-based dynamic pages with categories in Laravel 5.1?

Something like http://ift.tt/1Nocon1

I know that Route::get('/{slug}') gives the "slug" as identifier, but the problem is that the page could be situated in http://ift.tt/1Suu6W4, so if set the route to something like Route::get('/{category}/{subcategory}/{page}') it will not work for the second example.

I was thinking about making 3 routes like

Route::get('/{category}/{subcategory}/{page}')
Route::get('/{category}/{page}')
Route::get('/{page}')

And then the controller to receive ($category = null, $subcategory = null, $page = null) And in the controller something like

if (!$page)
    $page = $subcategory;

if (!$page)
    $page = $category;

Is there another, cleaner way to achieve this? Because here we have only 2 category routes, but there could be 3, 5 or more?

via Chebli Mohamed