c__ db- query SELECT FROM lenta WHERE object_id object_id AND id_who i

 $c__ = $db->query("SELECT * FROM `lenta`
                                        WHERE `object_id` < '" . $a['object_id'] . "'
                                        AND `id_who` = '" . $a['id_who'] . "'
                                        AND `type` = 'file'");
                    if ($c__->rowCount()) {
                        $db->query("DELETE FROM `lenta`
                                    WHERE `object_id` < '" . $a['object_id'] . "'
                                    AND `id_who` = '" . $a['id_who'] . "'
                                    AND `type` = 'file'");
                        header("Location: /lenta/");
                    }