navigate back with PHP form submission

Question

So here is the deal, I am using HTML forms to transfer variables from page to page and PHP script to create pages based on values submitted. In general it looks like this:

Answer 1

I tried this answer and it's ok. You have to put this code before: session_start():

session_cache_limiter('private, must-revalidate');
session_cache_expire(60);

Good luck