mysql - php session and database in codiegniter -

i trying create shopping cart in codeigniter. can 1 suggest me best way of doing thing database , php session.

i found lots of thing through internet not solved problem.

please give me shortest way it.

i new codeigniter.

codeigniter provides default `cart` class these purposes. 

you have load library

$this->load->library('cart'); 

if using codeigniter's cart class mandatory give (id, qty, price, , name) each products.

cart class provides ways insert , update items.

here codeigniter's docs on cart class

this tutorial helped me grasp on how use cart class