How to disable browser cache easily for particular, individual and separate function and controller in Codeigniter

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class MY_Cacheoff extends CI_Cacheoff {
/**
* author: https://www.blazingcoders.com
*/
function disable_cache() {
$this->set_header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
$this->set_header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
$this->set_header('Cache-Control: no-cache, no-store, must-revalidate, max-age=0');
$this->set_header('Cache-Control: post-check=0, pre-check=0', FALSE);
$this->set_header('Pragma: no-cache');
}

}

For more details check the link

https://www.blazingcoders.com/how-to-disable-browser-cache-easily-for-particular-individual-and-separate-function-and-controller-in-codeigniter