Redirecting domains to another and append redirected domain as query string

[alexm]

Hi all,

I have the following in my htaccess file:

RewriteCond %{HTTP_HOST} !^www\.buydomain\.uk
RewriteRule ^(.*)$ http://www.buydomain.uk$1 [R=301,L]

which forwards all domains pointing to this location to buydomain.uk which is working fine.

.htaccess is by no means my strong point so was wondering whether anyone knew how I could pass the redirecting domain to buydomain.uk as a parameter.

e.g. going to example.com would then redirect to https://www.buydomain.uk/?url=example.com

Any help with this would be greatly appreciated.