UploadPhotoLaravel.php

<?php
/* Laravel 5.6 */

/**
 * model
 * Upload image
 */

/*----- Don't use -----*/
function photo($file)
{
   $directory = '/image';
   $destinationPath = public_path() . $directory;
   $filename = str_random(20) . '.jpg';
   $output = $directory . '/' . $filename;
   $file->move($destinationPath, $filename);
   return $output;
}

/*------ Use this ------*/
function uploadImage($file)
{
   return $this->storage::url(
      $this->storage::disk('public')
         ->put('image', $file, 'public')
   );
}