WordPress at a glance
filter is not described

woocommerce_rate_compound filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_rate_compound', 'filter_function_name_3030', 10, 2 );
function filter_function_name_3030( $compound, $key ){
	// filter...

	return $compound;
}
$compound
-
$key
-

Where the hook is called

WC_Tax::is_compound()
woocommerce_rate_compound
woocommerce/includes/class-wc-tax.php 658
return (bool) apply_filters( 'woocommerce_rate_compound', $compound, $key );

Where in WP core the hook is used WooCommerce

Usage not found.