how to incorporate header and footer into views?

[eluser]Storyteller[/eluser]
Yes. CI doesn't have build in authentication and authorization . There are multiple options which you can choose from.

Here are the two that I know of being very good:

A3M (which I'm using, I choose it for its social media integration):
https://github.com/donjakobo/A3M

Ion Auth (popular choice for many, has tutorials)
https://github.com/benedmunds/CodeIgniter-Ion-Auth

Or you can always make your own.