Simple Shopping Cart – Adding Extra PayPal Input Fields

The simple shopping cart plugin has a filter that you can use to add extra input fields that will get sent to PayPal as part of the checkout.

Code Example

The following code example shows how you can append extra fields to the checkout form (add this code to your theme’s functions.php file or a custom plugin).

It will add the language code field to force a specific language on the PayPal checkout page.

add_filter('wspsc_cart_extra_paypal_fields', 'append_extra_fields');
function append_extra_fields($output)
{
    //Add the PayPal language code field
    $output = '<input name="lc" type="hidden" value="US" />';
    return $output;
}