Checks if the passed value is valid.
@api
mixed $value The value that should be validated:
Constraint $constraint The constraint for the validation:
Overrides ConstraintValidatorInterface::validate
public function validate($value, Constraint $constraint) {
if (null === $value || '' === $value || $value instanceof \DateTime) {
return;
}
if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
throw new UnexpectedTypeException($value, 'string');
}
$value = (string) $value;
if (!preg_match(static::PATTERN, $value, $matches) || !checkdate($matches[2], $matches[3], $matches[1])) {
$this->context
->addViolation($constraint->message, array(
'{{ value }}' => $value,
));
}
}