$_SESSION shopping cart problem

[tescgo]

Hi,

 

I am using a $_SESSION for my shopping cart but cannot figure out how to total my quantity.

 

The format I am using is:  $_SESSION['cart']['itemid']['qty']

 

I realise that i could write a for loop to start at item id 0 and end at 1000 each time totalling the qty field but there must be a better, more efficient way,

 

Does anybody have any advice?

 

Mark

[pengu]

You could use the ITEM_ID and an SQL query.

 

SELECT sum(qty) FROM items WHERE itemid = $_SESSION['itemid']

 

Or am I way off here?

[btherl]

You could store the total in the session as well, and update it only when the cart contents and/or their prices/quantities change.  That's more efficient than calculating it every time.