note 53971 rejected from function.session-unset by betz

Note Submitter: bubazoo at yahoo dot com ---- does session_register() save the session to the users computer? or do I use setcookie() to save the session when the user closes out their web browser for later when they revisit the site? I know session data is saved across web pages as you surf, but how do you store that session to the users computer for retrieval later when they come back at a later time? do you use setcookie or session_register?