Order::getBasketItemByItem

public function getBasketItemByItem(BitrixSaleBasketBase $basket, array $item)
{
	foreach($basket as $basketItem)
	{
		/** @var  BitrixSaleBasketItem $basketItem*/
		if($item['ID'] == $basketItem->getField('PRODUCT_XML_ID'))
		{
			return $basketItem;
		}
		else
			continue;
	}
	return false;
}