(PHP 4 >= 4.3.2, PHP 5, PHP 7)
streamWrapper::dir_rewinddir — Rewind directory handle
This method is called in response to rewinddir().
Should reset the output generated by streamWrapper::dir_readdir(). i.e.: The next call to streamWrapper::dir_readdir() should return the first entry in the location returned by streamWrapper::dir_opendir().
此函数没有参数。
成功时返回 TRUE， 或者在失败时返回 FALSE。