Android未随 PHP 服务器一起提供.因此，出于所有共同意图和目的，不可能在本地提供 .php 文件.

Android does not ship with a PHP server. Therefore for all common intents and purposes, it is not possible to serve a .php file locally.

您需要重写离线页面才能使用任何 PHP 代码.

You would need to rewrite your offline page to function without any PHP code.

我假设您引用的 CSS 也是 PHP include的一部分，因此出于相同的原因未加载.

I assume the CSS you refer to is also part of the PHP include and therefore is not loading for the same reason.