title: Laravel: how to limit some route parameter to specific values?
body: <p>Is that possible to make <code>route</code> that accept string parameter only for specific string? Example :</p>
  
  <pre><code>Route::get('{user_tipe}/event', 'admin\EventC@index');
  </code></pre>
  
  <p>That the route, I want to make the <code>user_tipe</code> param is only allow to two string like <code>admin</code> and <code>author</code>. Is that possible?</p>