Overtrue\Validation\Validator::validateDateFormat PHP Method

    protected function validateDateFormat($attribute, $value, $parameters)
    {
        $this->requireParameterCount(1, $parameters, 'date_format');
        $parsed = date_parse_from_format($parameters[0], $value);
        return $parsed['error_count'] === 0 && $parsed['warning_count'] === 0;
    }