Put the following into you htaccess file:
AddType application/x-httpd-php htm html php
AddHandler application/x-httpd-php .htm .html
TIP: REPLACE [] WITH STANDARD HYPERTEXT PROTOCOL.
TIP: REPLACE WHATEVER IS BETWEEN THE [] WITH YOUR INFORMATION.
Hope that helps!
AddType application/x-httpd-php htm html php
AddHandler application/x-httpd-php .htm .html
TIP: REPLACE [] WITH STANDARD HYPERTEXT PROTOCOL.
TIP: REPLACE WHATEVER IS BETWEEN THE [] WITH YOUR INFORMATION.
Hope that helps!