Question

I’ve got to redirect a URL that has a question mark in it, and I just can’t figure out the proper .htaccess code to make it happen.

Example:
redirect 301 /home.php?cat=16 http://www.example.com/furniture.html

I believe I need to do a rewrite condition, but I’m no htaccess expert.

Answer 1

With the Redirect directive from mod_alias you can only examine the URI path and not the query (applies to all directives of mod_alias). If you want to examine the URI query you need to use mod_rewrite:

RewriteEngine on
RewriteCond %{QUERY_STRING} ^cat=16$
RewriteRule ^home\.php$ http://www.example.com/furniture.html? [L,R=301]

The empty query in the replacement will prevent that the original query is being appended to the new URI.