<?php
namespace Symfony\Component\Validator\Constraints;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
class DateValidator extends ConstraintValidator
{
const PATTERN = '/^(\d{4})-(\d{2})-(\d{2})$/';
public function isValid($value, Constraint $constraint)
if ($value === null) {
return true;
}
if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString()'))) {
throw new UnexpectedTypeException($value, 'string');
$value = (string)$value;
if (!preg_match(self::PATTERN, $value, $matches)) {
$this->setMessage($constraint->message, array('{{ value }}' => $value));
return false;
return checkdate($matches[2], $matches[3], $matches[1]);