ผมมีตัว office แบบสำเร็จรูป ที่ login แล้วจะเก็บ session ชื่อ member ไว้ จะเอามาใช้ใน codeignitor ยังไงครับ

/*
|--------------------------------------------------------------------------
| Session Variables
|--------------------------------------------------------------------------
|
| 'sess_driver'
|
|	The storage driver to use: files, database, redis, memcached
|
| 'sess_cookie_name'
|
|	The session cookie name, must contain only [0-9a-z_-] characters
|
| 'sess_expiration'
|
|	The number of SECONDS you want the session to last.
|	Setting to 0 (zero) means expire when the browser is closed.
|
| 'sess_save_path'
|
|	The location to save sessions to, driver dependant
|
|	For the 'files' driver, it's a path to a directory.
|	For the 'database' driver, it's a table name.
|	Please read up the manual for the format with other session drivers.
|
| 'sess_match_ip'
|
|	Whether to match the user's IP address when reading the session data.
|
| 'sess_time_to_update'
|
|	How many seconds between CI regenerating the session ID.
|
| Other session cookie settings are shared with the rest of the application,
| except for 'cookie_prefix' and 'cookie_httponly', which are ignored here.
|
*/
$config['sess_driver'] = 'files';
$config['sess_cookie_name'] = ini_get('session.name');
$config['sess_expiration'] = 7200;
$config['sess_save_path'] = ini_get('session.save_path');
// ถ้ายังไม่ได้ ให้ลองใช้
// $config['sess_save_path'] = sys_get_temp_dir();
$config['sess_match_ip'] = FALSE;
$config['sess_time_to_update'] = 300;