CodeIgniter sessions vs PHP sessions

In my experience with CI I've encountered some anomalies with its sessions, but for most day-to-day needs the library is good and easy to work with. As it was pointed out, Flashdata is a very nice feature.

If you choose to stay with CI's sessions, I'd strongly suggest to store sessions in a database and, additionally, encrypt cookies:

$config['sess_encrypt_cookie'] = TRUE;$config['sess_use_database']   = TRUE;$config['sess_table_name']     = 'sessions';

The database structure should be as follows:

CREATE TABLE IF NOT EXISTS  `sessions` (    session_id varchar(40) DEFAULT '0' NOT NULL,    ip_address varchar(16) DEFAULT '0' NOT NULL,    user_agent varchar(50) NOT NULL,    last_activity int(10) unsigned DEFAULT 0 NOT NULL,    user_data text NOT NULL,    PRIMARY KEY (session_id));

The manual says more flexibility rather than better ;-)

I presume the main benefit of CodeIgnite session class is that it integrates with the framework and it offers a few extra functionality, such as IP address tracking and what it calls flashdata (session data that's erased as soon as it's read). If you are using a framework in the first place that means these options may be attractive for you.

Whatever, you can also save session data into a database:

http://codeigniter.com/user_guide/libraries/sessions.html

Keep PHP session for important information and use CI session for less important info.

Read here wyh.http://codeigniter.com/forums/viewthread/130577/