Apache不区分大小写。 解释扩展名.php而不是.PHP(但找到并下载)

Hello I want to perform a test and I would like to know how to configure my apache2 server (Apache/2.4.18) to be case insensitive.

When searching iNdeX.php return the page too.

I also want it to interpret all the .php files, but when search for the same file with the extension PHP in mayus, not interpret it, but search it and download the code, instead of just not finding it.

For example I browse:

localhost/index.php -> I get the page

localhost/iNDex.php -> I get the page

localhost/index.PHP -> I don't get a 404 Not Found, I download the code

Thank you in advance