通过数据库播种机为faker帖子生成真正的相对URL？

i am generating 30 fake posts with PHP Faker in my Laravel 5.7 test application and so far all data could be generated, my question is, i like to give each post a real relative url, not a fake Url.

public function run()
{
  $faker = Faker::create();
  foreach(range(1,30) as $index){
    DB::table('posts')->insert([
      'user_id' => $faker->numberBetween($min = 1, $max = 30),
      'title' => $faker->sentence,
      'post_image' => $faker->imageUrl($width = 640, $height = 480, 
      'cats', true, 'Faker'),
      'url', $faker->url( ????? ),
      'content' => $faker->realText(150),
      'created_at' => $faker->dateTimeBetween($startDate = '-10 years', $endDate = 'now', $timezone = null, $format = 'Y-m-d H:i:s', $max = 'now'),
    ]);
  }
}