未定义变量: controller

            // 如果有模块/控制器绑定
            $url = $bind . ('.' != substr($bind, -1) ? $depr : '') . ltrim($url, $depr);
        }

        list($path, $var) = $this->rule->parseUrlPath($url);
        if (empty($path)) {
            return [null, null, null];
        }

        if ($controller && !preg_match('/^[A-Za-z](\w|\.)*$/', $controller)) {
            throw new HttpException(404, 'controller not exists:' . $controller);
        }
        // 解析模块
        $module = $this->rule->getConfig('app_multi_module') ? array_shift($path) : null;

        if ($this->param['auto_search']) {
            $controller = $this->autoFindController($module, $path);
        } else {
            // 解析控制器