name : TrueValidator.php <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Validator\Constraints; use Symfony\Component\Validator\Constraint; use Symfony\Component\Validator\ConstraintValidator; /** * @author Bernhard Schussek <bschussek@gmail.com> * * @api */ class TrueValidator extends ConstraintValidator { /** * {@inheritDoc} */ public function validate($value, Constraint $constraint) { if (null === $value) { return; } if (true !== $value && 1 !== $value && '1' !== $value) { $this->context->addViolation($constraint->message); } } }