Easily Making Post Vars Session Vars

Hi, I realize you cannot override session variables through GET or POST for security reasons. I have a complex multipage form that I would like to store in a session for insertion in the database when the last step is completed. The form field names are arrays, so they can be listed and inserted quite easily (ie-custinfo[name], custinfo[state], etc). So, is there anyway to assign $HTTP_POST_VARS to a session array holding the same values without assign each variable one by one (there are a ton of variables). I tried doing something like this and it didn't seem to work: session_start(); if(!isset($custinfo)) { session_register("custinfo"); $custinfo = array(); } $custinfo = $HTTP_POST_VARS; So, it doesn't appear it will be that easy. Anybody have any hints on doing this? Thanks!