How can I execute a php script on a server?

[george_a_lutz]

I'm running on linux. My index.php is in /var/www/html which works because i can view it from a client browser, however it only displays stuff as html, not as php.

I've never used php before today so i may be missing something obvious. I assumed that the server should just execute the php. Seems like it's not though. Any ideas?

Thanks!