Stuck on 301 redirect with variables php

Question

I'm trying to write a 301 in our .htaccess file but can't get it working. We have url's like the following…

http://www.example.com/?cat=tree-category

http://www.example.com/?cat=food-category

We would like to change these to

http://www.example.com/directory/listings/tree-category

http://www.example.com/directory/listings/food-category

Could anyone help please, it would be very appreciated!

James

Answer 1

This should do it:

RewriteEngine On
RewriteCond %{REQUEST_URI}  ^/$
RewriteCond %{QUERY_STRING} ^cat=([a-zA-Z0-9\-]*)$
RewriteRule ^(.*)$ http://www.example.com/directory/listings/%1 [R=301,L]

Check out: http://www.simonecarletti.com/blog/2009/01/apache-query-string-redirects/