ManaPHP\Filesystem\Adapter\File::_dirCreate PHP Метод

    public function _dirCreate($dir, $mode = 0755)
    {
        /** @noinspection NotOptimalIfConditionsInspection */
        if (!is_dir($dir) && !@mkdir($dir, $mode, true) && !is_dir($dir)) {
            throw new FileException('create `:dir` directory failed: :last_error_message', ['dir' => $dir]);
        }
    }