Located in: Located in: checkout.class.php
Version Introduced: 3.8
Return: Boolean

Description: This condition is used to determine if the shipping details ahve been filled out. Normally you would used this to excute some code / display a message when the user selects the “shipping same as billing details checkbox”

<?php if(wpsc_is_shipping_details()):?>
echo "Your order will be shipped to your billing address";
<?php endif; ?>