Different controller load changing from codeigniter 2 -> 3

Question

I am trying to move from codeigniter 2 to codeigniter 3. Normally in most of our functions in our controller we call other controller sometimes like this,

 $this->load->controller('login');
 return $this->login->index();

But in codeigniter 3 this crashes, I checked how routes worked in this stack overflow question.

How to load a controller from another controller in codeigniter?

But the above url does not work for me, since changing routes will cancel all the database trasactions I use with mysql gets cancelled.

Is there a good solution to load different controller, I thought of moving it to a library and calling it like that but I think there is a better way. Also the HMVC might be a solution but its still doesn't solve the issue for a simple purpose.

Answer 1

According to the link you gave you cannot do that - I am not aware of the ability to $this->load->controller in CI3.

Your better option is to create a MY_Controller and extend your controllers from that and then place shared controller functions within that.

Answer 2

I think you are looking for HMVC solution. Check This Out

Update : By implementing HMVC, you can load any of your controller as a module like following

function abc(){
  $this->load->module("my_auth");
  $this->my_auth->check_login();
}