Symfony FormType，从数组集合中获取下拉列表

use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;

class YourFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('yourField', ChoiceType::class, [
                'choices' => [
                    'Option 1' => 'value1',
                    'Option 2' => 'value2',
                    'Option 3' => 'value3',
                ],
            ]);
    }
}

use App\Form\YourFormType;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

class YourController extends AbstractController
{
    /**
     * @Route("/your-route", name="your_route")
     */
    public function yourAction(Request $request)
    {
        $entityManager = $this->getDoctrine()->getManager();
        $data = $entityManager->getRepository(YourEntity::class)->findAll();

        $form = $this->createForm(YourFormType::class, null, [
            'choices' => $data,
        ]);

        // ...
    }
}