Using arrays

[thomashw]

I have an array of which I want to use to query my database.

 

The key(s) of the array depends on what the user clicks on on my website.

 

Array
(
    [cart] => Array
        (
            [2] => Array
                (
                )

            [1] => Array
                (
                )

        )

)

 

That's how the array is set up, and can be added to as well. I want to query the database depending on the keys (as you can see they aren't in numerical order, and can really be any number.)

 

How can I use these keys to query the database? I'd need to use a loop, as I need to use these keys to extract multiple things.

 

I tried using the SELECT statement where I said the id = $_SESSION['cart'] but I just got errors.

 

Thanks!