How to get the value of a custom property of an infoblock section?

Question

1C-Bitrix

I have created a custom field for infoblock sections - PAGEHEADER.
I set the value for the section.

How can I get its value?
Tried in different ways. Maybe I'm not doing it right. Please share your experience.

For example, I tried

$arOrder = array(
  "SORT"=>"ASC"
);
$arFilter = array(
  "IBLOCK_ID"=>"110"
);

$ar_result=CIBlockSection::GetList($arOrder, $arFilter, false, array('UF_PAGE_HEADER')); 
if($res=$ar_result->GetNext()){
  print_r($res);
};

Answer 1

Note No. 1: to display custom properties , IBLOCK_ID must be passed and the code of the required properties UF_XXX must be passed to arSelect.

dev.1c-bitrix.ru/api_help/iblock/classes/ciblockse...