Yes, it is. All you need to do is to install your WordPress on the subdomain, turn the Multisite on and set it to use subdirectories for sites. Make sure the following is set in multisite constants: define( ‘SUBDOMAIN_INSTALL’, false );
You could do either pretty easily or you could create a custom post type within your current installation and then you wouldn’t have to do either and you would only have one installation to manage.
You cant have 2 sites that uses the same data from the same database, because of how WordPress works (permalinks etc), i am guessing you want to do this to show 2 different themes, 1 for the desktop version and 1 for the mobile version, try doing that with 1 WordPress installation and change the … Read more
Since this is just a once a year thing, just install a new copy of WordPress each year with a different table prefix in the database settings. Change the site URL in the config of the old copy then move it to the folder for your subdomain. 5 minutes of work a year.
You need a vhost for the subdomain that redirects to public_html/sub_domain_folder instead of trying to redirect with .htaccess. You can then do a www redirect in public_html/sub_domain_folder/.htaccess. There should be some option in cpanel when creating the subdomain do specify which folder it directs to if you don’t have direct access to your vhost.
Use parse_url(): echo parse_url( get_permalink(), PHP_URL_HOST );
Some posts from custom post type to subdomains
The solution: I pasted the block of Mutisite code below the “That’s all, stop editing! Happy blogging.” line. I’d installed multisite so often that I didn’t pay attention to that part. So if you ever think you’ve installed multisite correctly but the My Sites button never appears, you’ve pasted the definitions too far down in … Read more
Re Install the WordPress core files (minus the wp-config.php and the wp-content directory) then run from the parent directory: sudo chmod -R g+rw blog/
Multisite install w/ Sub domains on a subdomain