public static function getSideBarFE() { if (Cache::has('side_bar_FE')) { $sideBar = Cache::get('side_bar_FE'); } else { $controllerType = new Type(); $controller4mat = new Format_cd(); $sideBar = $controllerType->sideBar(); $sideBar .= '<li class="sidebar-brand"><a href="#">'; $sideBar .= 'Format CD'; $sideBar .= '</a></li>'; $sideBar .= $controller4mat->sideBar(); Cache::forever('side_bar_FE', $sideBar); } return $sideBar; }