CJSON::encode简易用法实例 [ 新手入门 ]

$criteria=new CDbCriteria(array(
    'order'=>'id asc',
));
$count = Grade::model()->count($criteria);
$model=Grade::model()->findAll($criteria);
//$arr=array(array('id'=>1,'title'=>'高一'),array('id'=>1,'title'=>'高三'));
$data2=CJSON::encode($model);
$data='{'.'"total":'.$count.','.'"rows":'.$data2.'}';
echo $data;