Sessions about using them

[Anon]

Hi, I have a question.

I am building shoppingcart and i am not sure how to store data that users adds item to the cart.

Can some one tell me if i should store
Item_id, and Items_number as session veriables
or should I store all that information to the database when he adds item to the cart.

Another thing, I have around 15,000 user per day.

Which is method do you think I should use to store things that he add to the database?

I am using php4

Thanks alot

[Anon]

From my experience, storing data as session vars will just cause you grief (not saying it won't work!).....whereas you could have a database up and running well within an hour.

rgds,
scott d`

[Anon]

I have used sessions with great success, but in this case I would not use them to store the data.

I would store the data in a database and only use sessions to remember who is logged in etc.
A database is much better for storing large amounts of data and for working with that data.

When a user has finished adding items to his cart you can simply do one query to get all the data for the cart, and you can link it to price-information and stock-information. The last two are very difficult if you just have a bunch of variables in a session.

For you I think databases are the way to go!