I went into more detail about what the different processes are of adding php to a website programmed with *.html pages in this earlier htaccess post.

Here are a few more .htaccess lines that will enable php on your server. (Different servers require a different line of code.)

AddType application/x-httpd-php .html .htm

AddType x-mapp-php5 .html .htm

AddHandler application/x-php .html .htm

AddHandler x-httpd-php5 .html .htm

AddHandler x-httpd-php .html .htm

Check out my other .htaccess posts.

-Ashton Sanders