Nginx is probably written like this:

server {
  listen 80;
  server_name xxx.taobao.com;
  if ( $http_host ~* “^(.*)\.taobao\.com$”) {
  set $domain ;
  rewrite ^(.*) http://taobao.com/$domain/ break;
  }
}

Apache is similar to:

RewriteRule ^/([-a-z0-9]+)\.taobao\.com\/?$ http://taobao.com// [L]

Purpose
When accessing abc.test.com jumps to www.test.com/test/abc, the browser address will display the abc.test.com address.
Method
Add a new virtual host to the apache configuration file
NameVirtualHost :80

ServerName www.test.com
ServerAlias ​​*.test.com
DocumentRoot /var/www/test
rewriteengine on
rewritecond %{HTTP_HOST} [^.]+.test.com$
rewriterule ^(.+) %{HTTP_HOST}$1 [C]
rewriterule ([^.]+).test.com(.) /test/$1$2 #/test is the directory behind www.test.com/

Also, can you turn on your debug and look at the logs?

I added apache configuration:
RewriteRule ^/([-a-z0-9]+).xiaocaowangluo.com/?$ http://xiaocaowangluo.com/shop/$1/ [L]

There are two connections here http://xiaocaowangluo.com/shop/test/ http://test.xiaocaowangluo.com/ This configuration has been added.

http://test.xiaocaowangluo.com/ Still can’t jump to http://xiaocaowangluo.com/shop/test/ Do I need to add other ones?

Let me use it
RewriteEngine on RewriteCond %{HTTP_HOST} ^[^.]+.xiaocaowangluo.com$
RewriteRule ^(.+) %{HTTP_HOST}$1 [C]
RewriteRule ^([^.]+).xiaocaowangluo.com(.*) /www/xiaocaowangluo/shop/$1$2

This configuration doesn’t work either, please help me.

apache can be written like this

RewriteRule ^/([-a-z0-9]+)\.yourdomain\.com\/?$ http://taobao.com// [L]

Appconfig:
http://www.aips.me/sae-binding-domain-subdirectory.html