how to remove browser history in codeigniter?

Question

Hi I am working on a project (PHP-CodeIgniter, MySQL). In my application I am creating session for users data(userid, username) after successful login by the user and unset the session after signout.

"Here the main problem if i click on back button of browser I can able to see the previously visited pages in my application after signout also".

How can prevent this with codeigniter?

Thanks in advance

Answer 1

Just add these lines in .htaccess after RewriteEngine on

<Files *>
    Header set Cache-Control: "private, pre-check=0, post-check=0, max-age=0"
    Header set Expires: 0
    Header set Pragma: no-cache
</Files>

I prefer this because we need to add this at only one place(.htaccess) and it affect the entire application.