Create upload path based on current year and month

admin.php

<?php
return [
  /*
    |--------------------------------------------------------------------------
    | Laravel-admin upload setting
    |--------------------------------------------------------------------------
    |
    | File system configuration for form upload files and images, including
    | disk and upload path.
    |
    */
  
  'upload'  => [
    'disk' => 'public',
    'directory'  => [
        'image'  => 'images/'.date('Y/m'),
        'file'   => 'files/'.date('Y/m')
    ]
  ]  
];