Форум

$dbElements = CIBlockElement::GetList(array('CATALOG_PRICE_1'=>'ASC,NULLS'),
        array("IBLOCK_ID" => $arSection["IBLOCK_ID"],"SECTION_ID"=>$arSection['ID'])
        ,false
        ,array('nTopCount'=>1)
        ,array("IBLOCK_ID","ID", "NAME","CATALOG_PRICE_1")
    );
while($arrElement = $dbElements->Fetch()){
    echo $arrElement['CATALOG_PRICE_1'].'<br/>';
   echo '<pre>';  print_r($arParams['SECTION_ID']); echo '</pre>'; 
}
unset($dbElements, $arrElement);