PHP warning

382             if(!isset($config['enabled']) || $config['enabled'])
383             {
384                 Yii::trace("Loading \"$id\" application component",'system.CModule');
385                 unset($config['enabled']);
386                 $component=Yii::createComponent($config);
387                 $component->init();
388                 return $this->_components[$id]=$component;
389             }
390         }
391     }
392 

518      * Loads static application components.
519      */
520     protected function preloadComponents()
521     {
522         foreach($this->preload as $id)
523             $this->getComponent($id);
524     }
525 
526     /**
527      * Preinitializes the module.
528      * This method is called at the beginning of the module constructor.

147         $this->initSystemHandlers();
148         $this->registerCoreComponents();
149 
150         $this->configure($config);
151         $this->attachBehaviors($this->behaviors);
152         $this->preloadComponents();
153 
154         $this->init();
155     }
156 
157 

120      * to the constructor of the application class.
121      * @return mixed the application instance
122      */
123     public static function createApplication($class,$config=null)
124     {
125         return new $class($config);
126     }
127 
128     /**
129      * Returns the application singleton or null if the singleton has not been created yet.
130      * @return CApplication the application singleton, null if the singleton has not been created yet.