使用 .htaccess 在目录(包括所有子目录)中禁用 PHP

我正在制作一个允许人们上传文件、html 页面等的网站...现在我遇到了问题.我有这样的目录结构:

I'm making a website which allows people to upload files, html pages, etc... Now I'm having a problem. I have a directory structure like this:

-/USERS
    -/DEMO1
    -/DEMO2
    -/DEMO3
    -/etc... (every user has his own direcory here)
-index.php
-control_panel.php
-.htaccess

现在我想禁用 PHP，但在/USERS 中的目录和子目录中启用服务器端包含

Now I want to disable PHP, but enable Server-side includes in the direcories and subdirectories inside /USERS

这能做到吗(以及如何做到:))?提前致谢.

Can this be done (and how :) )? Thanks in advance.

顺便说一句，我使用 WAMP 服务器

BTW, I use WAMP server