Выборка из базы данных одновременно несколько полей - Joomla 3.x: Общие вопросы

{
	$db =JFactory::getDBO();
	$sql = "SELECT ad_headline FROM #__adsmanager_ads WHERE id = ".(int)$id;
	$db->setQuery($sql);
	$result = $db->loadResult();
	$result= TTools::stringURLSafe($result);
	$result = JString::substr($result,0,30);
	return $result;
}

$sql = "SELECT ad_headline, ad_citi FROM #__adsmanager_ads WHERE id = ".(int)$id; 

$sql = "SELECT * FROM #__adsmanager_ads WHERE id = ".(int)$id;
$result = $db->loadObject();
echo $result->ad_headline;
echo $result->ad_citi;

$db =&JFactory::getDBO();
    $sql = "SELECT * FROM #__adsmanager_ads WHERE id = ".(int)$id;
    $result = $db->loadObject();
    echo $result->ad_ad_headline;
    echo $result->ad_ad_citi;