__construct my bad code with Ion Auth

I'm sorry. for understanding how it works, I took only some functions in Ion Auth/
I don't see MY_Controller

use MY_Controller as the base class and extends all your controller from it.the code which is required in all controller goes into MY_controller and you don't have to copy paste in each controller.

some common usages:
1)authentication code.
2)loading common libraries , helper or any other resources
3)enable disable profiler or caching
4) simple template system etc

google or search on git hub . you will find some good examples.

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