Wordpress - Pass Query string as slash based URL

Staff member

I am trying to pass a parameter to a wordpress page. I don't want to pass it as a query string. I would like to pass as a slash based url.

Example:

Code:

http://localhost/mysite/pagename?user=myname

into

Code:

http://localhost/mysite/pagename/myname

How can I achieve this using my

Code:

functions.php

file in wordpress custom theme?