Yii2多个文件上传不起作用-Java 学习之路

当我尝试上传多个文件时，我不能这样做

Model File

namespace app\models;

class ImageFiles extends \yii\base\Model
    {
        public $imageFiles;

        public function rules()
        {
            return [
                [['imageFiles'], 'file', 'skipOnEmpty'=>false, 'extensions'=>'jpg, png', 'maxFiles'=>4]
            ];


 }
    }

View File

use yii\widgets\ActiveForm; 

     $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]); 

     echo  $form->field($model, 'imageFiles[]')->fileInput(['multiple'=>true, 'accept'=>'image/*']); 

     echo  \yii\helpers\Html::submitButton('Submit',['class'=>'btn btn-success']);

     ActiveForm::end();

Controller File

namespace app\controllers;
    use Yii;

    class ImageFilesController extends \yii\web\Controller
    {
        public function actionIndex()
        {
            $model = new \app\models\ImageFiles();
            if(Yii::$app->request->isPost){

                $model->imageFiles = \yii\web\UploadedFile::getInstance($model, 'imageFiles');

                print_r($model->imageFiles);

                return;
            }
            return $this->render('index', ['model'=>$model]);
        }
    }

print_r($model->imageFiles) 没有显示任何错误，因为 $model->imageFiles 没有任何 Value . 但是当我使用 print_r($_FILES) 时会打印所有图像细节 . 我很困惑，我做了yii文档所说的但是它不起作用 .

1 回答

对于多个文件，请使用UploadedFile::getInstances()

class ImageFilesController extends \yii\web\Controller
{
    public function actionIndex()
    {
        $model = new \app\models\ImageFiles();
        if(Yii::$app->request->isPost){

            $model->imageFiles = \yii\web\UploadedFile::getInstances($model, 'imageFiles');

            print_r($model->imageFiles);

            return;
        }
        return $this->render('index', ['model'=>$model]);
    }
}

回复于 2024-05-19T11:54:37+08:00

Yii2多个文件上传不起作用

1 回答

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