Rewrite page url as subdomain in apache htaccess - wordpress

Question

I have a lot of page URLs like domain.com/page I want a rewrite rule that will change all my pages URLs as page.domain.com meaning whatever will come after the domain just rewrite it as a subdomain
example urls
expertpro.cloud/hot-to-write-blog to hot-to-write-blog.expertpro.cloud
expertpro.cloud/game to game.expertpro.cloud
expertpro.cloud/nibm-full-form to nibm-full-form.expertpro.cloud
expertpro.cloud/choclate to choclate.expertpro.cloud
expertpro.cloud/harmony-in-life to harmony-in-life.expertpro.cloud
expertpro.cloud/paki-cold-places to paki-cold-places.expertpro.cloud
expertpro.cloud/you-are-one to you-are-one.expertpro.cloud
I already have some code for Nginx
The empty location = / block is necessary so that you don't redirect
http://example.com/ to http://.example.com/.
//replacing domain name in rewrite rule
location = / {
# don't redirect $server_name/
}
location / {
rewrite ^\/([^\/]*).*$ https://$1.$server_name/ redirect;

Answer 1

OK, all you need is an internal rewrite, as it looks:
RewriteEngine on
RewriteCond %{HTTP_HOST} !^www\.example\.com$
RewriteCond %{HTTP_HOST} ^([^.]+)\.example\.com$
RewriteRule ^ /%1%{REQUEST_URI} [END]
You obviously need the rewriting module to be loaded into your http server.
That would be a variant which additionally redirects direct requests to the internal URL:
RewriteEngine on
RewriteCond %{HTTP_HOST} ^(www\.)?example\.com$
RewriteRule ^/?([^/]+)(/.*)?$ https://$1.example.com$2 [R=301]
RewriteCond %{HTTP_HOST} !^www\.example\.com$
RewriteCond %{HTTP_HOST} ^([^.]+)\.example\.com$
RewriteRule ^ /%1%{REQUEST_URI} [END]
Here it makes sense to start out with a R=302 temporary redirection and only to change that into a R=301 permanent redirection once everything works as expected.
In general you should try to implement such rules in the actual http server's host configuration. If you have no access to that you can instead use a distributed configuration file (".htaccess"), but those come with disadvantages. You need to enable the interpretation of such files in that case.