Простой вывод списка элементов.
CModule::IncludeModule('iblock');
$iblockId = 1;
$arSelect = Array("NAME", "ID", "DETAIL_PAGE_URL", "PROPERTY_*");
$arFilter = Array("IBLOCK_ID" => $iblockId , "ACTIVE" => "Y" );
$res = CIBlockElement::GetList(Array('NAME' => 'ASC'), $arFilter, false, false, $arSelect);
while ($element = $res->fetch()) {
$arElements["ELEMENTS"][] = $element;
}