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<?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; use Symfony\Component\Validator\Exception\UnexpectedTypeException; use Symfony\Component\Validator\Exception\UnexpectedValueException; /** * @author Bernhard Schussek <bschussek@gmail.com> */ class DateValidator extends ConstraintValidator { public const PATTERN = '/^(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})$/'; /** * Checks whether a date is valid. * * @internal */ public static function checkDate(int $year, int $month, int $day): bool { return checkdate($month, $day, $year); } /** * @return void */ public function validate(mixed $value, Constraint $constraint) { if (!$constraint instanceof Date) { throw new UnexpectedTypeException($constraint, Date::class); } if (null === $value || '' === $value) { return; } if (!\is_scalar($value) && !$value instanceof \Stringable) { throw new UnexpectedValueException($value, 'string'); } $value = (string) $value; if (!preg_match(static::PATTERN, $value, $matches)) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setCode(Date::INVALID_FORMAT_ERROR) ->addViolation(); return; } if (!self::checkDate( $matches['year'] ?? $matches[1], $matches['month'] ?? $matches[2], $matches['day'] ?? $matches[3] )) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setCode(Date::INVALID_DATE_ERROR) ->addViolation(); } } }
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