I have recently worked on codeigniter project with cart, there i got an issue with adding more products to the cart. i have used one thing for that cart to add more product using session. that is simple thing only let me tell you that solution you just follow that and use it for you project. i have used Codeigniter 2.2.2. now 3.0.0 is the latest codeigniter version. i'll tell you the solution for two versions.
