I am very new to database work, so please forgive the simplicity of the question.
This is what I want to do:
Pass variables from a form (let's say its on page1.php) to a page for processing (let's say this is page2.php)
--This step I know how to do
Process the form on page2.php
--This step I know how to do
Automatically redirect the user to page3.php, but also send a variable that we got from the form (let's say it's $user_id)
--This step I do not know how to do without appending it to the URL, which would not be appropriate in this case.
Thanks in advance--I really appreciate it!