subdomains

RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www\.)?(.*)$ [NC]
RewriteCond %{DOCUMENT_ROOT}/web/%2-www/ -d
RewriteCond %{REQUEST_URI} !^/web/
RewriteRule (.*) /web/%2-www/$1 [QSA,DPI]

RewriteCond %{HTTP_HOST} ^(www\.)?([^\.]+)\.(.*)$ [NC]
RewriteCond %{DOCUMENT_ROOT}/web/%3-%2/ -d
RewriteCond %{REQUEST_URI} !^/web/
RewriteRule (.*) /web/%3-%2/$1 [QSA,DPI]