How to get dynamic home page

I have a index.html file consist of certain data with refresh button.

On pressing refresh button it will call refresh.php.

Refresh.php connects database and gets new updated data from database (Say- today's event data) And shows updated data in that refresh.php page

this is what I do.. But I want dynamic home page and want to remove refresh button. In short- whenever user loads homepage..that division should display updated data from database. So should I use .index.php and use php code in index.php itself will work?

I dont want to use asp/ajax/cookie/session. Please give me idea apart from these. Thanks :)