title: Get all FUNCTIONS name from all CONTROLLERS in Codeigniter
body: <p>Hello I am trying to get all FUNCTIONS name from all CONTROLLERS in Codeigniter
  Well I am able to get all CONTROLLER names in array but am failed to get all functions of all controllers. I only get functions names of current controller in which I am writing the function.</p>
  
  <p>I am fetching function names by <code>$class_methods=get_class_methods(new classname());</code></p>
  
  <p>If I tried it globally I get directory error.</p>