$result = db_query($this->link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
WHERE owner_uid = " . $_SESSION['uid']);
$result = db_query($this->link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
WHERE owner_uid = " . $_SESSION['uid']);