public function actionUpdateImgDrop($id) { $fileName = 'file'; $uploadPath = 'images/articles/' . $id; if (isset($_FILES[$fileName])) { $file = \yii\web\UploadedFile::getInstanceByName($fileName); if ($file->saveAs($uploadPath . '/' . $file->name)) { $articleImg = new ArticlesImg(); $articleImg->article_id = $id; $articleImg->img_url = $file->name; $articleImg->save(); echo \yii\helpers\Json::encode($file); } } }