$arFilter=["XML_ID"=>"astr_964"];
$arSelect = Array("*");
$res = CIBlockElement::GetList(
[],
$arFilter,
false,
false,
$arSelect
);
$result = false;
if($ob = $res->GetNextElement())
{
$result = $ob->GetFields();
$result['PROPERTY_VALUES'] = $ob->GetProperties();
}