            $masteroption->delete();
        }
        
        // delete the mastergroup
        $db->delete('optiongroup', 'optiongroup_master_id='.$mastergroup->id);
        $mastergroup->delete();
        
        expHistory::back();
    }
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.