PHP Session class similar to CodeIgniter Session Class? Exists?
===

PHP session class similar to CodeIgniter session class? Exists?

I tried to search, but I did not get useful results.
I was using CodeIgniter session class, that have several features a 
like so much:

Store user's unique Session Id, user's IP Address, 
user's User Agent data, last activity and other informations
manually provided. Those informations are stored in a database (MySql).
The class create a cookie to match the unique session id with the session
id at the database.
In my opnion, this class is very secure.

I want to use this class outside CodeIgniter (without using CodeIgniter).
Can anyone recommend me a class with those features?

Thanks!