Yii2学习笔记（七）：文件上传Upload

三个文件：模型、控制器和视图

1、模型：upload.PHP

1. <?php
2. namespace appmodels;
3. use yiibaseModel;
4. class Upload extends Model
5. {
6. public $file;
8. /**
9. * @return array the validation rules.
10. */
11. public function rules()
12. {
13. return [
14. [['file'], 'file'],
15. ];
16. }
17. }
18. ?>

2、控制器：upload方法

1. //文件上传功能
2. public function actionUpload()
3. {
4. $model = new Upload();
6. if (Yii::$app->request->isPost) {
7. model->file = UploadedFile::getInstance(
9.         if ($model->file && $model->validate()) {    
10. model->file->saveAs('../uploads/' .
11. }
12. }
14. return this->render('upload', ['model' =>
15. }

3、视图：upload.php

1. <?php
2. use yiiwidgetsActiveForm;
3. ?>
5. <?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>
7. <?=
8. <button>Submit</button>
10. <?php ActiveForm::end() ?>