How models and the such exactly work in CI

[eluser]Phil Sturgeon[/eluser]
Everthing loaded will be kept in the current "instance". Meaning Controllers, views can access anything loaded via $this or by using get_instance();

If for example you load a model or library in the constructor of the controller, it will be available to all fnuctions below it.

However they are only loaded for that page request. Click a new page which doesnt load the user model, and it wont work. Hope this makes sense.