I create more store views in my Magento 1.9 store, how I can add a subdomain per each store view.
For example I create a new store with the name eu where I setup the language to be english and I need to add a subdomain for this store view: eu.example.com but my url is something like this: http://example.com/?___store=de&___from_store=eu.
I made the steps like in this image, what I need to do to have this subdomain: eu.example.com to the eu store view?
Also I try to add something like this in .htaccess without success:
RewriteCond %{HTTP_HOST} ^eu.example.com
RewriteRule ^ - [E=MAGE_RUN_CODE:eu]