YII文件上传

First declare an attribute to store the file name in the model class (either a form model or an active record model). Also declare a file validation rule for this attribute to ensure a file is uploaded with specific extension name.
class Item extends CActiveRecord
{
    public $image;
 
    // ... other attributes

    public function rules()
    {
        return array(
            array('image', 'file', 'types'=>'jpg, gif, png'),
 
        );
 
    }
}
Then, in the controller class define an action method to render the form and collect user-submitted data.
class ItemController extends CController
{
    public function actionCreate()
    {
        $model=new Item;
 
        if(isset($_POST['Item']))
        {
            $model->attributes=$_POST['Item'];
 
            $model->image=CUploadedFile::getInstance($model,'image');
 
            if($model->save())
            {
                $model->image->saveAs('path/to/localFile');
 
                // redirect to success page
            }
        }
        $this->render('create', array('model'=>$model));
 
    }
}
Finally, create the action view and generate a file upload field.
'multipart/form-data')); ?>