wik

Apache giving pages as downloads rather than displaying them

I just installed MediaWiki on a website and I am having some problems. Whenever I go to "www.something.com/wikidir" the server gives me the PHP index file as an unnamed download instead of displaying it. However, if I go to "www.something.com/wikidir/index.php" everything works as expected. I'm not familiar with Apache and was wonderi...