Call function A inside function B on Codeigniter's controller

Question

I have a controller that have about 5-6 functions.

class Register extends CI_Controller {
public function index()
{
  //  some code written
}    
public function Add()
{
  //  Some code written
}
public function xyz()
{
  //  Some code written
  $this->abc();
}
public function abc()
{
  // Some code written
}
}

In xyz function, i want to call abc function. Is this possible ? if so, how to call it ?

Answer 1

It is possible, the code you have written is correct

public function xyz()
{
  //  Some code written
  $this->abc();     //This will call abc()
}

EDIT:

Have you properly tried this?

class Register extends CI_Controller {
    public function xyz()
    {
      $this->abc();
    }
    public function abc()
    {
      echo "I am running!!!";
    }
}

and call register/xyz