CODE EXAMPLE FOR PHP

laravel database seeder

namespace DatabaseSeeders;

use AppModelsCategory;
use AppModelsPost;
use AppModelsUser;
use IlluminateDatabaseSeeder;

class DatabaseSeeder extends Seeder
{
    /**
     * Seed the application's database.
     *
     * @return void
     */
    public function run()
    {
        $users = User::factory(2)->create();
        $categories = Category::factory(3)->create();
        Post::factory(3)->create([
            'user_id' => $users[0]->id,
            'category_id' => $categories[0]->id
        ]);
 
        Post::factory(3)->create([
            'user_id' => $users[1]->id,
            'category_id' => $categories[2]->id
        ]);

    }
}