Execute PHP syntax in .HTML file

If you want to run PHP code in .html extention file
Then Follow following procedures.

1. Write Following code in the .htaccess file
---------------------------------------------
RemoveHandler .html .htm
AddType application/x-httpd-php .php .htm .html
-----------------------------------------------------

2. Upload it to your server (to your WWW root) where your
.html files are located in which contains PHP code.

Thats the idea.