title: Codeigniter 3 - subdirectory controller
body: <p>I have one issue related to how to add controllers in sub directories for a better administration of large amount of files
  For that, I have the following structure in controllers:</p>
  
  <pre><code>controllers
  --admin
  ----projects
  --------block.php
  ----projects.php
  ----dashboard.php
  </code></pre>
  
  <p>If I'm heading to <code>admin/projects</code> the controller works just fine, but if I want to select <code>admin/projects/block</code> it doesn't work at all, generating a 404 page</p>
  
  <p>I even tried to change the route.php using:</p>
  
  <pre><code>$route['admin/projects/block/(:any)']       = 'admin/projects/block/$1'; 
  </code></pre>
  
  <p>Am I doing something wrong? Do you have any idea?</p>