title: Making php includes work in a sub-directory
body: <p>Ok, I am creating an admin interface for my custom blog at the url /admin.</p>
  
  <p>Is it possible for me to be able to use the same includes (including autoload), as the root directory.</p>
  
  <p>If possible, I would also like to be able to automatically correct the links in the navigation so that they go that index.php in / changes to ../index.php when accessed from /admin.</p>
  
  <p>Thanks, Nico</p>