How to hide everything, but the site name?

Question

For example:

html://www.mysite.com/subdom/index.php?abc=1&def=2&ghi=3

to appear as:

html://wwww.mysite.com/subdom/index.php

or possibly:

html://wwww.mysite.com/subdom/

Answer 1

You can use Apache's mod_rewrite to rewrite your URLs.

Answer 2

Make a page at whatever.com/index.php that is nothing but an iframe that takes up the entirety of the browser window. That iframe will point at your actual index page, and when people click links it only changes the page the iframe is at, not the outer page and the URL in the location bar stays the same.