$result = $apdo->statement('select 2*2 as base_question')->fetchOne();
echo $result->base_question;
list($base_question) = $apdo->statement('select 2*2 as base_question')->fetchRow();
echo $base_question;
$base_question = $apdo->statement('select 2*2 as base_question')->fetchCell('base_question');
echo $base_question;

$result = $apdo->statement()->fields('2*2 as base_question')->fetchOne();
echo $result->base_question;

list($base_question) = $apdo->statement()->fields('2*2')->fetchRow();
echo $base_question;

$q = 'select 
`catalog_group`.`subject` AS `Категория`,
CONCAT( "' . $imgsrc . '", 
	`catalog_photo`.`id_photo`, "___", 
	`catalog_photo`.`photo`, 
	"\"/>") AS `Фото`,
	`catalog`.`subject` AS `Наименование`,
`catalog`.`available` AS `Наличие`,
CONCAT("<a target=\"_blank\" href=\"http://www.somesite.ru/catalog/", 
	cast(`catalog`.`group`  AS CHAR CHARACTER SET utf8), "/", 
	cast(`catalog`.`iden`  AS CHAR CHARACTER SET utf8), ".html", "\">", 
	`catalog_sub`.`name`, "</a>" ) AS `Продукт`,
`catalog_sub`.`price` AS `Цена`,
`catalog_sub`.`size` AS `Размеры`
from `catalog_group`, `catalog`, `catalog_sub`, `catalog_photo`
where 
`catalog`.`group` = `catalog_group`.`iden`
and 
`catalog_sub`.`parent` = `catalog`.`iden`
and 
`catalog_photo`.`iiden` = `catalog`.`iden` 
and `catalog`.`group` in (4,5) 
group by `catalog_sub`.`name` 
order by `catalog`.`group` desc, `catalog_sub`.`name` asc ';