Valitron\Validator::validateInstanceOf PHP Method

    protected function validateInstanceOf($field, $value, $params)
    {
        $isInstanceOf = false;
        if (is_object($value)) {
            if (is_object($params[0]) && $value instanceof $params[0]) {
                $isInstanceOf = true;
            }
            if (get_class($value) === $params[0]) {
                $isInstanceOf = true;
            }
        }
        if (is_string($value)) {
            if (is_string($params[0]) && get_class($value) === $params[0]) {
                $isInstanceOf = true;
            }
        }
        return $isInstanceOf;
    }