WordPress at a glance
filter is not described

woocommerce_cart_totals_coupon_html filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_cart_totals_coupon_html', 'filter_function_name_645', 10, 3 );
function filter_function_name_645( $coupon_html, $coupon, $discount_amount_html ){
	// filter...

	return $coupon_html;
}
$coupon_html
-
$coupon
-
$discount_amount_html
-

Where the hook is called

wc_cart_totals_coupon_html()
woocommerce_cart_totals_coupon_html
woocommerce/includes/wc-cart-functions.php 295
echo wp_kses( apply_filters( 'woocommerce_cart_totals_coupon_html', $coupon_html, $coupon, $discount_amount_html ), array_replace_recursive( wp_kses_allowed_html( 'post' ), array( 'a' => array( 'data-coupon' => true ) ) ) ); // phpcs:ignore PHPCompatibility.PHP.NewFunctions.array_replace_recursiveFound

Where in WP core the hook is used WooCommerce

Usage not found.