PHP warning

258             $x = $box[2] + $this->offset;
259         }
260 
261         imagecolordeallocate($image,$foreColor);
262 
263         header('Pragma: public');
264         header('Expires: 0');
265         header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
266         header('Content-Transfer-Encoding: binary');
267         header("Content-type: image/png");
268         imagepng($image);

119                 // when src attribute of image tag is changed
120                 'url'=>$this->getController()->createUrl($this->getId(),array('v' => uniqid())),
121             ));
122         }
123         else
124             $this->renderImage($this->getVerifyCode());
125         Yii::app()->end();
126     }
127 
128     /**
129      * Generates a hash code that can be used for client side validation.

70     {
71         $method=new ReflectionMethod($this, 'run');
72         if($method->getNumberOfParameters()>0)
73             return $this->runWithParamsInternal($this, $method, $params);
74         else
75             return $this->run();
76     }
77 
78     /**
79      * Executes a method of an object with the supplied named parameters.
80      * This method is internally used.

304     {
305         $priorAction=$this->_action;
306         $this->_action=$action;
307         if($this->beforeAction($action))
308         {
309             if($action->runWithParams($this->getActionParams())===false)
310                 $this->invalidActionParams($action);
311             else
312                 $this->afterAction($action);
313         }
314         $this->_action=$priorAction;

282      * @see runAction
283      */
284     public function runActionWithFilters($action,$filters)
285     {
286         if(empty($filters))
287             $this->runAction($action);
288         else
289         {
290             $priorAction=$this->_action;
291             $this->_action=$action;
292             CFilterChain::create($this,$action,$filters)->run();

261         {
262             if(($parent=$this->getModule())===null)
263                 $parent=Yii::app();
264             if($parent->beforeControllerAction($this,$action))
265             {
266                 $this->runActionWithFilters($action,$this->filters());
267                 $parent->afterControllerAction($this,$action);
268             }
269         }
270         else
271             $this->missingAction($actionID);

271         {
272             list($controller,$actionID)=$ca;
273             $oldController=$this->_controller;
274             $this->_controller=$controller;
275             $controller->init();
276             $controller->run($actionID);
277             $this->_controller=$oldController;
278         }
279         else
280             throw new CHttpException(404,Yii::t('yii','Unable to resolve the request "{route}".',
281                 array('{route}'=>$route===''?$this->defaultController:$route)));

130             foreach(array_splice($this->catchAllRequest,1) as $name=>$value)
131                 $_GET[$name]=$value;
132         }
133         else
134             $route=$this->getUrlManager()->parseUrl($this->getRequest());
135         $this->runController($route);
136     }
137 
138     /**
139      * Registers the core application components.
140      * This method overrides the parent implementation by registering additional core components.

157      */
158     public function run()
159     {
160         if($this->hasEventHandler('onBeginRequest'))
161             $this->onBeginRequest(new CEvent($this));
162         $this->processRequest();
163         if($this->hasEventHandler('onEndRequest'))
164             $this->onEndRequest(new CEvent($this));
165     }
166 
167     /**