Admins vs Moders

        if ($ban_user != '') {
            $result = $db->query('SELECT id, username, email FROM '.$db->prefix.'users WHERE username=\''.escape(strtolower($ban_user)).'\'') or error('Unable to fetch user info', __FILE__, __LINE__, $db->error());
            if ($db->num_rows($result)) {
                list($ban_id, $ban_user, $ban_email) = $db->fetch_row($result);

                $result = $db->query('SELECT poster_ip FROM '.$db->prefix.'posts WHERE poster_id='.$ban_id.' ORDER BY posted DESC LIMIT 1') or error('Unable to fetch post info', __FILE__, __LINE__, $db->error());
                if ($db->num_rows($result))
                    $ban_ip = $db->result($result, 0);
            }
            else
                message('No user by that username registered. If you want to add a ban not tied to a specific username just leave the username blank.');
        }

        if ($ban_user != '') {
            $result = $db->query('SELECT id, username, email, status FROM '.$db->prefix.'users WHERE username=\''.escape(strtolower($ban_user)).'\'') or error('Unable to fetch user info', __FILE__, __LINE__, $db->error());
            if ($db->num_rows($result)) {
                list($ban_id, $ban_user, $ban_email, $ban_status) = $db->fetch_row($result);

                if (intval($ban_status) == 2)
                    message('Are you crazy? Can not ban administrator!');

                $result = $db->query('SELECT poster_ip FROM '.$db->prefix.'posts WHERE poster_id='.$ban_id.' ORDER BY posted DESC LIMIT 1') or error('Unable to fetch post info', __FILE__, __LINE__, $db->error());
                if ($db->num_rows($result))
                    $ban_ip = $db->result($result, 0);
            }
            else
                message('No user by that username registered. If you want to add a ban not tied to a specific username just leave the username blank.');
        }