How do I verify the correct namespace usage in Laravel Faker

1. Ensure you have imported the Faker namespace correctly at the top of your PHP file:

php
use Faker\Factory as Faker;

2. Create an instance of the Faker factory using the imported namespace:

php
$faker = Faker::create();

3. Use the Faker instance to access the formatters:

php
$name = $faker->name;
$email = $faker->email;

4. If you are using Faker within a Laravel Model Factory, make sure you are using the `faker()` global helper function instead of the `Faker` namespace:

php
namespace Database\Factories;

use App\Models\User;
use Illuminate\Database\Eloquent\Factories\Factory;

class UserFactory extends Factory
{
    protected $model = User::class;

    public function definition()
    {
        return [
            'name' => faker()->name,
            'email' => faker()->unique()->safeEmail,
        ];
    }
}

5. If you have defined custom formatters in a service provider, ensure that you have registered them correctly with Faker:

php
public function boot()
{
    Faker\Factory::addProvider(new MyCustomProvider($this->app));
}

6. When using Faker in tests, make sure you are extending the correct base class (e.g., `TestCase` or `DatabaseMigrations`) and calling the parent `setUp()` method.

By following these steps and double-checking your namespace usage, you should be able to resolve the "Unknown formatter" error and successfully use Faker in your Laravel application.