How to properly implement session checking in CodeIgniter?

Question

CodeIgniter

Good evening.

I just started to delve into php frameworks, so such a question about authorization -
How best to implement the admin session check?
That is, make a separate controller for the admin, consisting only of admin functions and check the session at the very beginning, or add the same functions to other controllers (for example, a controller that works with blog posts, and there is also a function that allows you to edit / delete them) and carry out check directly in them?

I apologize if I described it incorrectly somewhere,
thanks in advance for your help

Answer 1

What is the best way to implement admin session checking?

You can see how others have done it before you: DX-
Auth authorization page.