Forms submitting to a session array

I'm trying to create a shopping cart where users can visit a product pag=
e  =

(called from a MySQL database depending on the url ending in  =

?product_id=3D#). On the product page users can select options from drop=
down  =

lists (such as color, etc.) These dropdown lists are also dynamically  =

generated from the database.

I need to store what the user has selected while the user browses the  =

site. I want to also display what they've selected on a "cart" page.

I believe my best option is to store what they've selected in a session =
=

array. I'm not sure how to do this with the dropdown lists, etc.

Any help would be greatly appreciated!

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