Yii20 file upload

1. Load in the controller interface

use yii\web\UploadedFile;

2. Receive the picture and save it locally

  $file = UploadedFile::getInstanceByName('photo');
            //保存路径
            $path = 'images/';
            //判断文件是否存在
            if(!file_exists($path)){
                mkdir($path);
            }
            //重命名文件名
            $file_name = date('Y-m-d').mt_rand(0000,9999).'.'.$file;
            $new_path= $path.$file_name;
            $file->saveAs($new_path,true);

Note: At this point the file has been uploaded. The next step is to add the database

The above introduces Yii20 file upload, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.