Mulitpart Application

[fnbcprog]

What is the best way to go about an online application that will involve multiple steps to complete.

I am a little unsure on how I should hold the information after the user has submitted the forms and what should happen when the user needs to go backwards and forwards if they forgot something in the application.

Should I use objects.... a ton of session variables.... or a database registration.....

[thorpe]

objects are'nt persistant accross pages unless you serialise/unserlialise them. sessions could be one way. passing values around in hidden forms or querystrings is another.

[fnbcprog]

I am talking an application that will and could possibly contain 50 or hundred variables and i think the querystring is limited on length?

Am I correct?

And, in this event wouldnt objects be automatically serialized/un in php 4 and above?