Строка и номер Laravel Faker
$this->faker->bothify('?###??##') // 1efr38qa
Lokesh003
$this->faker->bothify('?###??##') // 1efr38qa
'parent_id' => $faker->boolean ? Page::all()->random()->id : null,
strtoupper((\Faker\Factory::create())->bothify('???-#?##'))