How to put inclue file outside of htdocs?

[Oxy]

It’s possible - only that folder is inside htdocs

Read here the part that mentions includes

Redirected to InfinityFree 403 Forbidden page

While working on your website, you may be redirected to the InfinityFree 403 error page. This article explains why this can happen, and what you can do to solve it. The directory does not contain an index file If you try to request a URL without a file name in the URL (e.g. http://example.com/ or http://example.com/blog/), the server will look for a so-called index file. An index file is a file with the name index.php, index.html, index.htm or index2.html in the folder you’re trying to access.…