generator-php-scaffold/app/templates/backend/symfony/skeleton/config/packages/validator.yaml

This generator create a application with restful architecture with Zend 3 or Symfony framework

framework:
    validation:
        email_validation_mode: html5
        enabled: true
        enable_annotations: true
        # Enables validator auto-mapping support.
        # For instance, basic validation constraints will be inferred from Doctrine's metadata.
        auto_mapping:
            App\Entity\: []