Multiple page form

Hi there. It's been a while since I have done any PHP work. I am creating an online employment application using multiple forms for a client. I was going to use PHP. I don't remember if I need to pass variables along with the form for each page, or can I just call them on the last page. The application form is very long. Any ideas? There may be a script that exists already? Anyway, it's nice to be back. - Shane