Use Cases
Direct URL to the Cart Page With the Coupon Code ‘Partner’.
The link below can be used when a particular coupon is applicable to all of the items in the cart.
https://domain.com/cart/?coupon=partnerAdd a Specific Product (By Product ID) to the Cart and Automatically Apply the Coupon Code ‘Partner’.
The ‘123’ portion of the example link below, references the specific product’s ID. The Product ID can be found by going to WordPress Dashboard > Products and hovering over the product name.
https://domain.com/cart/?add-to-cart=123&coupon=partnerCode Snippet
<?php
/* Apply a WooCommerce discount code to cart via URL parameter. */
function my_woocommerce_apply_cart_coupon_in_url() {
// Return early if WooCommerce or sessions aren't available.
if ( ! function_exists( 'WC' ) || ! WC()->session ) {
return;
}
// Return if there is no coupon in the URL, otherwise set the variable.
if ( empty( $_REQUEST['coupon'] ) ) {
return;
} else {
$coupon_code = esc_attr( $_REQUEST['coupon'] );
}
// Set a session cookie to remember the coupon if they continue shopping.
WC()->session->set_customer_session_cookie(true);
// Apply the coupon to the cart if necessary.
if ( ! WC()->cart->has_discount( $coupon_code ) ) {
// WC_Cart::add_discount() sanitizes the coupon code.
WC()->cart->add_discount( $coupon_code );
}
}
add_action('wp_loaded', 'my_woocommerce_apply_cart_coupon_in_url', 30);
add_action('woocommerce_add_to_cart', 'my_woocommerce_apply_cart_coupon_in_url');Video Tutorial
