How to replace one query string via .htaccess?

@darrion.kuhn 

You can use the following code in your .htaccess file to replace one query string with another:

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RewriteCond %{QUERY_STRING} ^oldquery=oldvalue$
RewriteRule ^(.*)$ $1?newquery=newvalue [L,R=301]

This code will redirect any URL with the query string oldquery=oldvalue to the same URL with the query string replaced with newquery=newvalue.

Make sure to replace oldquery=oldvalue and newquery=newvalue with the actual query strings you want to replace.

Additionally, the [R=301] flag in the RewriteRule directive will perform a permanent redirect. If you want to keep the same URL in the address bar without redirection, you can remove this flag.