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<?
CModule::IncludeModule("highloadblock");

      $arHLBlock = Bitrix\Highloadblock\HighloadBlockTable::getById(9)->fetch();
      $obEntity = Bitrix\Highloadblock\HighloadBlockTable::compileEntity($arHLBlock);
      $strEntityDataClass = $obEntity->getDataClass();

         $res = $strEntityDataClass::getList(array(
             'select' => array('UF_NAME', 'UF_XML_ID', 'ID'),
             'order' => array('UF_XML_ID' => 'ASC'),
             'filter' => array()
         ));

      while ($arItem = $res->fetch()) {
        $arName[$arItem['ID']] = $arItem['UF_NAME'];
      }