Функция вывода цены товара в Битриксе

function getFinalPriceInCurrency($item_id, $sale_currency = 'RUB') {
global $USER;
$currency_code = 'RUB';
// Do item have offers?
 if(CCatalogSku::IsExistOffers($item_id)) {
// Пытаемся найти цену среди торговых предложений
 $res = CIBlockElement::GetByID($item_id);
if($ar_res = $res->GetNext()) {
if(isset($ar_res['IBLOCK_ID']) && $ar_res['IBLOCK_ID']) {
// Find all offers
 $offers = CIBlockPriceTools::GetOffersArray(array(
 'IBLOCK_ID' => $ar_res['IBLOCK_ID'],
 'HIDE_NOT_AVAILABLE' => 'Y',
 'CHECK_PERMISSIONS' => 'Y'
 ), array($item_id), null, null, null, null, null, null, array('CURRENCY_ID' => $sale_currency), $USER->getId(), null);
foreach($offers as $offer) {
$price = CCatalogProduct::GetOptimalPrice($offer['ID'], 1, $USER->GetUserGroupArray(), 'N');
 if(isset($price['PRICE'])) {
$final_price = $price['PRICE']['PRICE'];
 $currency_code = $price['PRICE']['CURRENCY'];
// Find discounts and calculate price with discounts
 $arDiscounts = CCatalogDiscount::GetDiscountByProduct($item_id, $USER->GetUserGroupArray(), "N");
 if(is_array($arDiscounts) && sizeof($arDiscounts) > 0) {
 $final_price = CCatalogProduct::CountPriceWithDiscount($final_price, $currency_code, $arDiscounts);
 }
// Stop cycle, use found value
 break;
 }
}
 }
 }
} else {
// Simple product, not trade offers
 $price = CCatalogProduct::GetOptimalPrice($item_id, 1, $USER->GetUserGroupArray(), 'N');
// Got price?
 if(!$price || !isset($price['PRICE'])) {
 return false;
 }
// Change currency code if found
 if(isset($price['CURRENCY'])) {
 $currency_code = $price['CURRENCY'];
 }
 if(isset($price['PRICE']['CURRENCY'])) {
 $currency_code = $price['PRICE']['CURRENCY'];
 }
// Get final price
 $final_price = $price['PRICE']['PRICE'];
// Find discounts and calculate price with discounts
 $arDiscounts = CCatalogDiscount::GetDiscountByProduct($item_id, $USER->GetUserGroupArray(), "N", 2);
 if(is_array($arDiscounts) && sizeof($arDiscounts) > 0) {
 $final_price = CCatalogProduct::CountPriceWithDiscount($final_price, $currency_code, $arDiscounts);
 }
}
// Convert to sale currency if needed
 if($currency_code != $sale_currency) {
 $final_price = CCurrencyRates::ConvertCurrency($final_price, $currency_code, $sale_currency);
 $currency_code = $sale_currency;
 }
return $final_price;
}