I am having a problem with the dynamic parameters. Many visitors (of My website) when they want to link to My website, they link to it and sometimes they add parameters (that I didn't put), like they link to http://www.example.com/tony.php?sid=1234 , and don't link to the main page that is http://www.example.com/tony.php, so now I had a mixed statistics about My visitors, and search engines (like "Google") begins to ban My website because it sees the same page in different parameters (or URLs).
So I there a way to disable these parameters or make My pages to redirect automatically to the main page (when a person enters the page by a parameter)? (if this is not possible, please say that is not possible)