500 error on any new created php files

500 error on any new created php files

I'm getting a 500 internal server error on any new php files that I create
on my server.
So even if they are blank or have something simple such as
<?php
echo "foo";
?>
They will still error.
I have created and successfully received .html files and am still able to
get all my old php files, I just can't get any more that I create.
Why would it do this, is there some sort of limit on how many php files I
can have on my server?