g1smd - 1:10 pm on Dec 27, 2012 (gmt 0)

URL rewriting often makes for a simpler URL, one that is easier to say, and "means something" when you look at it.

Parameters with duplicates:
example.com/index.php?category=20&name=widgets&page=5
example.com/index.php?category=20&page=5&name=widgets
example.com/index.php?name=widgets&category=20&page=5
example.com/index.php?name=widgets&page=5&category=20
example.com/index.php?page=5&category=20&name=widgets
example.com/index.php?page=5&name=widgets&category=20

Rewritten:
example.com/c20-p5-widgets

You don't need a .html or .php suffix and if example.com/c20-p5-random-words is requested then the site should redirect to the correct URL.