Codeigniter controller constructor

<?php defined('BASEPATH') OR exit('No direct script access allowed');

class Mycontroller extends CI_Controller {

       public function __construct()
       {
            parent::__construct();
            $this-?>load->helper('date');
            // More code goes here...
       }
      
      public function index(){
           // if you load date helper in contructor you need not load here 
           // all the helper date functions will be available here.
          
       }
}