I got a problem regarding the execution of PHP5 files in a subdirectory. PHP itself seems to be fine. The problem is the following:
http://www.example.com/subdir/index.php <- works fine
http://www.example.com/subdir <- does not work, the browser downloads the .php file itself.
Basically I used the default configuration coming with Ubuntu 10.04.
My mods-enabled/dir.conf contains:
DirectoryIndex index.cgi index.pl index.php index.xhtml index.htm index.html
I did some Google searches, but I could not find people having the same problem. I must admit, that I had no good idea on how to search for this problem, because php5, apache2 and subdirectory lead to many irrelevant pages.