如何在Laravel中使用faker获取文件的选定大小？

I have created a factory in my project file using fzaninotto/faker like this :

      'icon' => $faker->file($sourceDir='/home/gujarat/fakerFile/images', $targetDir='./public/iconLibrary', false),
      'title' => $faker->name,
      'date' => $faker->numberBetween($min = 1900, $max = 2016),
      'size' => $faker->randomFloat($nbMaxDecimals = 10.0, $min = 2.0, $max = 10.0),
      'file_type' => 'video/mp4',
      'download_url' => $faker->file($sourceDir='/home/gujarat/fakerFile/video', $targetDir='./public/videoLibrary', false),
      'category_id' => $randomCategory->id,

I need to get the size of the selected file from $faker->file() as you can see in my field download_url in MB or KB, and the file extension is .mp4 is it possible to do this?

First find the path of the file, and use filesize() from here to determine the size of the file. I manage to do this in my factory class like this :

$factory->defineAs(App\Library::class, 'library_video', function (Faker\Generator $faker) {
  $categories = Category::all();
  $randomCategory = $categories->random();

  $randomFile = $faker->file($sourceDir='/home/gujarat/fakerFile/video', $targetDir='./public/videoLibrary', false);
  $size = filesize("./public/videoLibrary/".$randomFile);


  return [
      'icon' => $faker->file($sourceDir='/home/gujarat/fakerFile/images', $targetDir='./public/iconLibrary', false),
      'title' => $faker->name,
      'date' => $faker->numberBetween($min = 1900, $max = 2016),
      'download_url' => $randomFile,
      'size' => $size,
      'file_type' => 'video/mp4',
      'category_id' => $randomCategory->id,
  ];
});

You can use Illuminate\Http\UploadedFile which extends symfony's UploadedFile class

$path = $faker->file($sourceDir='/home/gujarat/fakerFile/video', $targetDir='./public/videoLibrary', false);
$uploadedFile = new Illuminate\Http\UploadedFile($path, 'randomName');
$uploadedFile->getClientSize();

You can use php function getimagesize

list($width, $height) = getimagesize("dir/image.jpg");