yii使用CUploadedFile上传文件

一、前端代码

Html代码  

<form action="<?php echo $this->createUrl('/upload/default/upload/');?>" method="post" enctype="multipart/form-data">
<input type="file" name="file"/>
<input type="hidden" name="dir" value="<?php echo Yii::app()->controller->currentDir?>"/>
<input type="submit" value="Upload Image"/>
</form>

二、后端代码

Php代码 

public function actionUpload()
{
$this->currentDir = isset($_REQUEST['dir']) ? $_REQUEST['dir'] : '';
$image = CUploadedFile::getInstanceByName('file');
$name = $this->uploadPath.'/'.$this->currentDir.'/'.$image->name;
$image->saveAs($name);
$this->redirect(array('index','dir'=>$this->currentDir));
}

关于CUploadedFile类的使用

通过 CUploadedFile::getInstance($model,'album_image');
或 $attach = CUploadedFile::getInstanceByName($inputFileName);

获取的对象$attach对象，有以下几个属性：
name
size
type
tempName

error
extensionName
hasError