Use __remap to Show 404 Page

[eluser]fjamal[/eluser]
I have the following code structure:

First Step:

Code:

class MY_Controller extends CI_Controller

it has the following __remap:

Code:

public function _remap($method, $param) {

  if (method_exists($this, $method)){

             call_user_func_array(array($this, $method), $param);

  } else {
                  
                      //show 404
  
  }
}

Second Step:

Code:

class Frontend_Controller extends MY_Controller

it has all implementations that are commonly shared in frontend.

Third Step:

Code:

class Home extends Frontend_Controller

Just a regular controller that handles user interactions.


Problem:

Whenever user types a wrong controller's name e.g.

Code:

http://www.example.com/home2

or

Code:

http://www.example.com/home/indexABC

Not found page is shown. However, repeating controller's name doesn't bring up the 404 page e.g.

Code:

http://www.example.com/home/home/home/home

The above url works totally fine as if user typed

Code:

http://www.example.com/home/

Any idea how to solve this issue? I need to show 404 page when user types double+ controller's name

Code:

http://www.example.com/home/home/

Thanks