PHP项目统一设置404页面（包括yii框架下）

'errorHandler'=>array(  
            // use 'site/error' action to display errors  
            'errorAction'=>'site/error',  
        ),  

public function actionError()  
    {  
        if($error=Yii::app()->errorHandler->error)  
        {print_r($error);  
            if(Yii::app()->request->isAjaxRequest)  
                echo $error['message'];  
            else  
                $this->render('error', $error);  
        }  
    }  

<?php $this->pageTitle=Yii::app()->name . ' - Error';  
$this->breadcrumbs=array(  
    'Error',  
);  
?>  
  
<h2>Error <?php echo $code; ?>
</h2>  
  
<div class="error">  
<?php echo CHtml::encode($message); ?>  
</div>