Использовать можно так:
$posts = command('SELECT * FROM post WHERE id IN(%s)', array(1, 2, 3))->queryAll(); foreach($posts as $post) { print_r($post); } $id = command('SELECT id FROM post WHERE name = %s AND status=%d', 'Alexander', 10)->queryScalar(); echo $id; $post = command('SELECT * FROM post WHERE id = %d', 101)->queryRow(); print_r($post);