PHP Storing Sessions: Can't Seem to Serialize Session Variables

[Khala]

I am making use of seralize and unseralize to set and get session variables from my Database.A user is in a session and every time they click save. I do this:\[code\]$array = serialize($_SESSION);//and save to DB field\[/code\]When a user loads a session, I load the variables too to continue that session like so:\[code\]//get row from DB$_SESSION = unserialize($row['session_variables']);\[/code\][*]This doesn't work for me. It firstly doesn't unseralize as it returns something like this when I \[code\]print_r($_SESSION)\[/code\]:\[code\]Array ( [user_id] => test2 [date_created] => [date_updated] => [session_variables] => a:9:{s:7:"user_id";s:5:"test2";s:12:"date_created";N;s:12:"date_updated";N;s:17:"session_variables";s:149:"a:6:{s:7:"user_id";s:5:"test2";s:4:"here";s:2:"12";s:5:"here2";s:6:"112432";s:5:"here3";s:6:"132432";s:5:"here4";s:4:"1qw2";s:5:"here5";s:5:"1wqe2";}";s:4:"here";s:2:"12";s:5:"here2";s:6:"112432";s:5:"here3";s:6:"132432";s:5:"here4";s:4:"1qw2";s:5:"here5";s:5:"1wqe2";} [here] => 12 [here2] => 112432 [here3] => 132432 [here4] => 1qw2 [here5] => 1wqe2)\[/code\][*]Where is the session_id for these variables to be used across different pages? Have I over written them?Thanks all for any helpEDITIs the session_id kept in the global $_SESSION? I am guessing no. If I unset $_SESSION, it means the session will not be gone just the variables, correct? Anyone verify please?