Horde_Form::unsetVars PHP Method

    function unsetVars(&$vars)
    {
        foreach ($this->getVariables() as $var) {
            $vars->remove($var->getVarName());
        }
    }

                 $notification->push(sprintf(_("There was a problem adding \"%s\" to the system: %s"), $info['user_name'], $e->getMessage()), 'horde.error');
                 break;
             }
             if (isset($info['extra'])) {
                 try {
                     $injector->getInstance('Horde_Core_Hooks')->callHook('signup_addextra', 'horde', array($info['user_name'], $info['extra']));
                 } catch (Horde_Exception $e) {
                     $notification->push(sprintf(_("Added \"%s\" to the system, but could not add additional signup information: %s."), $info['user_name'], $e->getMessage()), 'horde.warning');
                 } catch (Horde_Exception_HookNotSet $e) {
                 }
             }
             if ($vars->removeQueuedSignup) {
                 $signup->removeQueuedSignup($info['user_name']);
             }
             $notification->push(sprintf(_("Successfully added \"%s\" to the system."), $info['user_name']), 'horde.success');
             $addForm->unsetVars($vars);
         }
     }
     break;
 case 'remove_f':
     $f_user_name = $vars->user_name;
     $remove_form = true;
     break;
 case 'remove':
     $f_user_name = $vars->user_name;
     $vars->remove('user_name');
     if ($vars->submit == _("Cancel")) {
         break;
     }
     if (empty($f_user_name)) {
         $notification->push(_("You must specify a username to remove."), 'horde.message');