(PHP 4 >= 4.3.2, PHP 5, PHP 7)
streamWrapper::dir_opendir — Open directory handle
$path
, int $options
) : boolThis method is called in response to opendir().
pathSpecifies the URL that was passed to opendir().
Note:
The URL can be broken apart with parse_url().
optionsWhether or not to enforce safe_mode (0x04).
成功时返回 TRUE， 或者在失败时返回 FALSE。