Question

我试图从控制器类中的$ _FILES数组获取文件名和临时路径，我使用$ _FILES ['image']来获取控制器类中的文件名，但它打印为空。但是当我使用var_dump打印整个$ _FILES时，它会打印文件名temp path。

我的控制器代码，

public function actionUpload()
{
        $model=new UploadModel();
        echo var_dump($_FILES);
        echo "image-->".$_FILES['image'];

}

我的模型代码，

<?php
class UploadModel extends CFormModel 
{
  public $image;
    // ... other attributes

    public function rules()
    {
              return array(
                'image','file',
                        'safe'=>true,
                        'allowEmpty'=>TRUE,
                        'maxSize'=>512000,
                        'types'=>'csv',
                        'tooLarge'=>'The size of the file is more than 100Kb',
                        'wrongType'=>'the file must be in the jpeg,png format',
            );
    }
    public function attributeLabels()
    {
        return array(
            'image'=>'image',
        );
    }
}

Answer 1

为什么不在 Yii STYLE

中执行此操作

    public function actionUpload()
    {
            $model=new UploadModel();
    //rest of your code

            $model->image=  CUploadedFile::getInstance($model, 'image');
            if(!empty($model->image))
            {
                echo $model->image->name . $model->image->size;
            }

//render view here
    }

在规则

中

'tooLarge'=>'The size of the file is more than 250Kb',
'wrongType'=>'the file must be in the csv format',

如果您希望以 Yii样式进行此类情况，那么 使用此

echo "image-->".$_FILES['image']['name'];

Answer 2

使用 UploadedFile 模块它有几个属性

if ($model->load(Yii::$app->request->post())) {
            // get instances of uploaded files
            $model->english_file = UploadedFile::getInstance($model, 'english_file');
            $model->english_file->saveAs('uploads/' . $model->english_file->name);
}

了解更多信息； Yii2 UploadedFile

在Yii Framework中从$ _FILES获取文件名

2 个答案: