Bitrix display property bound to element?

Question

CMS

Hi Everyone, you need to display the property attached to the element, in my case, the id to which the element is attached is displayed. The question is how to display the values ​​of the property itself and not the value of the element to which it is attached?
here is the code

if ($arFields['IBLOCK_ID'] == 9) {  
            $ID = $arFields['ID'];
            $arSelect = Array("PROPERTY_DATETIME", "PROPERTY_USER", "PROPERTY_CLINIC", "PROPERTY_DOCTORS");
            $arFilter = Array("IBLOCK_ID"=>9, "ACTIVE_DATE"=>"Y", "ACTIVE"=>"Y", "ID" => $ID);
            $res = CIBlockElement::GetList(Array(), $arFilter, false, false, $arSelect);
            if ($res->SelectedRowsCount() == 1) {
                if ($GLOBALS['compare']["ID"] == $ID) {
                    while($ob = $res->Fetch()){
                        // Получаем новую дату
                        $date_time = $ob['PROPERTY_DATETIME_VALUE'];
                        $clinic = $ob['PROPERTY_CLINIC_VALUE'];
            //вот тут выводится не само свойствао а id привязанного
                        $doctors = $ob['PROPERTY_DOCTORS_VALUE'];

                        $user = getUserLoginById($ob['PROPERTY_USER_VALUE']);
                        $user_lang = getUserLangById($ob['PROPERTY_USER_VALUE']);
                        $user_id =  $ob['PROPERTY_USER_VALUE'];


                    }
    }
    }
    }

Answer 1

Instead of Fetch in line
Use GetNextElement
To get the fields do this
To get the properties do this
This is inside the while loop.
You can read more here