mod rewrite - .htaccess mod_rewrite: rewriting querystring to path

Question

How could I use a rewrite to change:

/?tag=foo

To:

/tag/foo

I tried:

RewriteCond %{QUERY_STRING} ^tag=(.+)$
RewriteRule ^(.*)$ http://www.example.com/tag/$1 [L]

But it did not work.

Answer 1

Try the following:

RewriteCond %{QUERY_STRING} ^tag=(.+)$
RewriteRule ^(.*)$ http://www.example.com/tag/%1 [L]

Usually, rewrites are used to achieve the opposite effect. Are you sure you don't really want to do the following?

RewriteRule ^tag/(.+)$ index.php?tag=$1 [L]