title: Codeigniter get controller name in helper
body: <p>I have a custom helper that i use for logging.</p>
  
  <p>Within one of the functions of the helper i need to get the name of the controller that was called. Is there a way to do it? </p>
  
  <p>I can't rely on uri segments because some controllers are in sub-folders and the helper is used all over.</p>