Contoh Membuat Factory di Laravel

php artisan make:factory StudentsFactory

<?php

namespace Database\Factories;

use Illuminate\Database\Eloquent\Factories\Factory;

/**
 * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\Students>
 */
class StudentsFactory extends Factory
{
    /**
     * Define the model's default state.
     *
     * @return array<string, mixed>
     */
    public function definition(): array
    {
        return [

                'idstudents' => mt_rand(1000000, 9999999),
                'fullname' => fake()->name,
                'gender' => fake()->randomElement(['M', 'F']),
                'address' => fake()->address,
                'emailaddress' => fake()->safeEmail(),
                'phone' => fake()->phoneNumber,

        ];
    }
}

Buat seedernya

php artisan make:seeder StudentsSeeder

<?php

namespace Database\Seeders;

use App\Models\Students;
use Illuminate\Database\Seeder;

class StudentsSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {

        Students::factory()->count(500)->create();
    }
}

Students::factory()->count(500)->create();

kode tersebut akan membuat data sebanyak 500