title: How to use laravel routing for unknown number of parameters in URL?
body: <p>For example, I'm publishing books with chapters, topics, articles:</p>
  
  <p><code>http://domain.com/book/chapter/topic/article</code></p>
  
  <p>I would have Laravel route with parameters:</p>
  
  <p><code>Route::get('/{book}/{chapter}/{topic}/{article}', 'controller@func')</code></p>
  
  <p>Is it possible, in Laravel, to have a single rule which caters for an unknown number of levels in the book structure (similar to <a href="https://stackoverflow.com/questions/18481484/url-routing-for-unknown-number-of-params">this question</a>)? This would mean where there are sub-articles, sub-sub-articles, etc..</p>