Derek Derek - 3 months ago 60
PHP Question

Check if coupon is applied in woo commerce

I need to find a way to check if a coupon is applied to Woocommerce checkout, if so I would like to do something. I have tried searching around for this and cannot find a solution.

here is a slimmed down version of what I am trying:

add_action('woocommerce_before_cart_table', 'apply_product_on_coupon');
function apply_product_on_coupon( ) {
global $woocommerce;
$coupon_id = '12345';

if( $woocommerce->cart->applied_coupons === $coupon_id ) {
echo 'YAY it works';
}
}


So is this not the right way to check if the coupon exists in cart?
if( $woocommerce->cart->applied_coupons === $coupon_id )

Answer

From your example, something like this might work. This is untested, but should give you a step in the right direction:

add_action('woocommerce_applied_coupon', 'apply_product_on_coupon');
function apply_product_on_coupon( ) {
    global $woocommerce;
    $coupon_id = '12345';
    $free_product_id = 54321;

    if(in_array($coupon_id, $woocommerce->cart->applied_coupons)){
        $woocommerce->cart->add_to_cart($free_product_id, 1);
    }
}