woocommerce_price_ex_tax_amount хук-фильтр . WC 1.0

Использование

add_filter( 'woocommerce_price_ex_tax_amount', 'filter_function_name_310', 10, 4 );
function filter_function_name_310( $tax_amount, $key, $rate, $price ){
	// filter...

	return $tax_amount;
}

$tax_amount

-

$key

-

$rate

-

$price

-

Где вызывается хук

$tax_amount = apply_filters( 'woocommerce_price_ex_tax_amount', $tax_amount, $key, $rate, $price ); // ADVANCED: Allow third parties to modify this rate.

$tax_amount        = apply_filters( 'woocommerce_price_ex_tax_amount', $tax_amount, $key, $rate, $price, $the_price_inc_tax, $pre_compound_total ); // ADVANCED: Allow third parties to modify this rate.

Где используется хук в ядре WooCommerce