Domain and subdomain wildcards on Apache as dynamic subfolders

For dynamic domain name configuration based on the names of folders you create in
/public_html/sites/, you can use the ServerAlias and VirtualDocumentRoot directives.

Add something like this in your apache virtualhost configuration file:

<VirtualHost *:80>    ...    ServerAlias *    VirtualDocumentRoot /public_html/sites/%0    ...</VirtualHost>

To understand why %0 is used, consider the domain m.rate.movies.net split into parts

Index:             %1      %2      %3       %4Domain:             m     rate    movies    netNegative Index:    %-4     %-3     %-2      %-1

The one I chose to use, %0 represents the entire domain name - m.rate.movies.net. This allows you to support domain names that can have varying number of parts separated by dots. This makes sub-directories created inside /public_html/sites/ be the document root for any domain name pointed to your server's IP.

  /public_html/sites/domain.com        --> http://domain.com/  /public_html/sites/blog.writers.org  --> http://blog.writers.org/  /public_html/sites/m.rate.movies.net --> http://m.rate.movies.net/

If you used something like VirtualDocumentRoot /public_html/sites/%1

You will have to create the sub-directories this way

  /public_html/sites/domain   --> http://domain.com/  /public_html/sites/blog     --> http://blog.writers.org/  /public_html/sites/m        --> http://m.rate.movies.net/

You can also use a combination: VirtualDocumentRoot /public_html/sites/%-2\.%-1

  /public_html/sites/domain.com   --> http://domain.com/  /public_html/sites/writers.org  --> http://blog.writers.org/  /public_html/sites/movies.net   --> http://m.rate.movies.net/

Yet another way: VirtualDocumentRoot /public_html/sites/%-1/%-2/

  /public_html/sites/com/domain   --> http://domain.com/  /public_html/sites/org/writers  --> http://blog.writers.org/  /public_html/sites/net/movies   --> http://m.rate.movies.net/

With these setup, you won't have to edit the virtual host configuration every time you add a new domain. You won't be able to use separate log files for each domain, but for that, you can use a custom log format that includes the host name.