How to Create Forms using HTML/CSS

Hello everyone, in fact I have big problem, plus it's quite urgent! : s I am currently creating a form step-by-step allows a user to assist in finding the proper computer by using it will basically: > Step 1: I request the use he intends to make (edits, office, video games) > Step2: If he prefers a mobile or fixed > Step 3: The maximum budget for this client (from a choice that I offer different levels) The responses are therefore check the Inbox dan. So off I set my form with my presentation page, second page step 1, third step in step 2 and step 3 fourth page. So I have a html / css with the form, then a php file for data recovery Inbox chosen by the customer in the form. The trouble is that I can not retrieve the data selected by the customer voila all: / Thanks in advance.