Check if Coupon Code Exists
In the previous tutorial we already discussed how to check if a specific coupon is applied to cart or to an order. But in this tutorial I will show you a different thing – how to find out programmatically if coupon with a specific code is actually created in WooCommerce admin.
Is there some specific condition for that?
In order to check if blackfrd coupon exists we can use just one function wc_get_coupon_id_by_code() and it will be enough.
Example:
if( wc_get_coupon_id_by_code( 'blackfrd' ) ) {
echo 'Yep, the coupon exists.';
} else {
echo 'Does not exist.';
}This function returns a coupon ID in case it exists or 0 if it doesn’t.
Misha Rudrastyh
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