I'm wondering if there's a way to use PHP scripts in a normal HTML file, same as you can do with SSI.
I've even tried including a PHP file using SSI, and it doesn't work. It just puts, as text in the page: "[an error occurred while processing this directive]". The tag I used to do this was (without the space before the !, of course):
< !--#include virtual="HelloWorld.php"-->
I just want the possibility of using PHP in all my pages, without having to change their names.