This should probably come without any surprise, but the changes can only be undone before close() is called...
(PHP 5 >= 5.2.0, PHP 7, PECL zip >= 1.1.0)
ZipArchive::unchangeAll — Undo all changes done in the archive
Undo all changes done in the archive.
此函数没有参数。
成功时返回 TRUE， 或者在失败时返回 FALSE。
This should probably come without any surprise, but the changes can only be undone before close() is called...