Horde_Date::format PHP Method

    public function format($format)
    {
        if (!isset($this->_formatCache[$format])) {
            $this->_formatCache[$format] = $this->toDateTime()->format($format);
        }
        return $this->_formatCache[$format];
    }

 public function processRequest(Horde_Controller_Request $request, Horde_Controller_Response $response)
 {
     $this->_mapper = $GLOBALS['injector']->getInstance('Horde_Routes_Mapper');
     $this->_matchDict = new Horde_Support_Array($this->_mapper->match($request->getPath()));
     $injector = $this->getInjector();
     switch ($this->_matchDict->action) {
         case 'category':
             $driver = $injector->getInstance('Dolcore_Factory_Driver')->create($injector);
             $categories = $driver->getCategoriesApi();
             $discussionApi = $driver->getDiscussionApi();
             $category = $categories->getCategory($this->_matchDict->category);
             /* Write a category's currently running Umfragen */
             $now = new Horde_Date(time());
             $template = $this->getInjector()->createInstance('Horde_Template');
             $template->set('updated', $now->format(DATE_ATOM));
             $template->set('category_caption', $category->getCaption());
             $template->set('category_id', $category->id);
             $discussions = array();
             foreach ($discussionApi->listDiscussions(array('category' => $category->id)) as $discussion) {
                 $discussions[$discussion->id]['title'] = $discussion->text;
                 $discussions[$discussion->id]['details'] = $discussion->hintergrund;
                 $discussions[$discussion->id]['modified'] = $discussion->erstelldatum;
                 $discussions[$discussion->id]['id'] = Dolcore::getUrlFor('discussion', array('discussion_id' => $discussion->id), true, true);
                 $discussions[$discussion->id]['url'] = Dolcore::getUrlFor('discussion', array('discussion_id' => $discussion->id), true, true);
             }
             $template->set('discussions', $discussions);
             $response->setBody($template->fetch(DOLCORE_TEMPLATES . '/feeds/atom.xml'));
             break;
         case 'categories':
             break;
     }
 }