How to display a custom property for a Bitrix section?

Question

1C-Bitrix

It is necessary to display a custom property in the Bitrix section. There is an approximate code that can possibly be completed and everything will work as it should.

<? 
    $rsResult = CIBlockSection::GetList(array("SORT"=>"ASC"), array("IBLOCK_ID"=>"1"), false, array("UF_HEADH1"));
while($arResult = $rsResult->GetNext())
{
echo $arResult[UF_HEADH1]; }
?>

So he pulls out all the properties and later gets the one I need, only without filtering by section. Conditionally, the field is filled in for two sections ("hello" for one and "bye for the other). So the code on all pages of all sections will display "hello bye" for me. I need to somehow filter by the code of the current section so that the corresponding text is displayed in it.

Answer 1

Well, you filter by IBLOCK_ID, what prevents you from filtering by the section code or by its ID?

$select = [
  "UF_HEADH1"
  
];

$sort = [
  "SORT" => "ASC"
];

$filter = [
  /* @var int ID инфоблока */
  'IBLOCK_ID' => 1,

  /* @var string Символьный код раздела */
  'CODE' => 'SECTION_CODE',

  /* @var int ID раздела */
  'ID' => 123,
];

$rsResult = CIBlockSection::GetList(
  $sort,
  $filter,
  false,
  $select
);
while($arResult = $rsResult->GetNext())
{
  echo $arResult['UF_HEADH1'];
}

Answer 2

Gentlemen, how to display the custom property of the PRODUCT (in the catalog section, in the product card)?