WooCommerce: Dynamic Custom Checkout Fields in admin
问题 I am having issues adding custom checkout fields to the order admin (and maybe emails, i'm not there yet). Coding issues aside, I mostly followed https://www.kathyisawesome.com/woocommerce-customize-checkout-fields/ - here's my code so far: http://pastebin.com/y8LDcDxS I have it adding 'x' amount of $fields['extra_fields'] based on product quantity, assuming one product in the cart. I'm struggling with kia_display_order_data_in_admin() - I keep getting bit by get_country() whatever I do. I've