问Woocommerce订阅-取消注册费中的税款

EN

function get_price_sign_up_fee( $product ){
    $price_incl_tax = wcs_get_price_including_tax( $product, array( 'price' => WC_Subscriptions_Product::get_sign_up_fee( $product ) ) );
    $price_excl_tax = wcs_get_price_excluding_tax( $product, array( 'price' => WC_Subscriptions_Product::get_sign_up_fee( $product ) ) );
    $price_tax = $price_incl_tax - $price_excl_tax;

    return array( 'incl_tax' => $price_incl_tax, 'excl_tax' => $price_excl_tax, 'tax' => $price_tax );
}

add_filter( 'woocommerce_subscriptions_product_price_string', 'subscr_product_price_string', 10, 3 );
function subscr_product_price_string( $subscription_string, $product, $include ){
        //print_pr($subscription_string);

    if ( $include['sign_up_fee'] && WC_Subscriptions_Product::get_sign_up_fee( $product ) > 0 ) {
        $sign_up_fee = get_price_sign_up_fee( $product );
        // Replacing price to excluding taxes one
        $subscription_string = str_replace( wc_price($sign_up_fee['incl_tax']), wc_price($sign_up_fee['excl_tax']), $subscription_string );
    }
    return $subscription_string;
}