PHP Code in .html/.htm pages

If I name my file .php and run the printinfo() routine, I get output. But when the file is named .html or .htm, the printinfo() just displays in the page. Is there a way to get .html files to execute the PHP code within them? For example, the following code will only work from within a file with .php as the extension: (index.php) <?php print ("Hello World!<P>"); phpinfo(); ?> This will display as expected showing the PHP environment in pretty tables. When I rename index.php to index.htm, I get output that looks like this: "); phpinfo(); ?> Can't PHP code be inserted in .html named files? Bob Kramer