Populating Form

mpar612

I have a form that is created on the fly from values in a database. It is a shopping cart application where the user comes to a page where the form is created based on selections that are made on the previous pages. Once the users adds items to his or her cart and begin the check-out process I have a link that says "Continue Shopping" which takes them back to the form. All of items in their cart are stored in an array. How do I populate the dynamically generated form with the values in the array that the user previously selected?

Any guidance would be greatly appreciated. Thanks in advance!

NogDog

It's rather hard to give any specific guidance without knowing how the data is being saved in the session. If I were doing it, it would probably be in a 2-dimension array within the $SESSION array, something like:

$_SESSION:
Array
(
    [cart] => Array
        (
            [0] => Array
                (
                    [product_id] => 123
                    [quantity] => 1
                )

        [1] => Array
            (
                [product_id] => 234
                [quantity] => 3
            )

        [2] => Array
            (
                [product_id] => 345
                [quantity] => 2
            )
    )
)

Then to populate the form just do a foreach:

<form . . . . >
<?php
foreach($_SESSION['cart'] as $item)
{
   // do stuff with $item['product_id'] and $item['quantity']
}
?>
</form>

mpar612

Thanks for the response NogDog! My form is generated using multiple nested foreach loops and inserting another foreach loop messes up the order in which items are printed on the screen. There are over 150 lines of code to get the form to print on the page and I do not want to post that unless necessary. Is there a way to do something like this:

if $productId equals a $key in an array then echo the $value.

I am not using a 2 dimensional array. All of my data is stored as array(key=>value, key=>value, etc...)

I have been messing around with array_key_exists, but I don't know if this is even the right place to be working with.

Does anyone have any thoughts?

Thanks!