The answer to this question is that it depends on how the web server is setup.
Simplifying greatly: First, virtual directories are established and then the domains are assigned to them. The root directory is usually the domain name and the default virtual directory. Then, the sub domain names are assigned to perhaps the same or other virtual directories. But most typically to directories that are lower in the directory structure that the domain related directory. Every virtual directory is a root, and the security settings of the server config do not allow you to go up the directory structure above the root, ie, the directory assigned to the virtual directory. In other words, the server admin is in control here. And he can build a variety of combinations. On my main server, I have multiple domain names pointed to the same virtual directory with different behaviors configured depending on the domain name used. Not what you want, but an example of how the server admin can change the behavior. Jim --- In [email protected], "Bob" <[EMAIL PROTECTED]> wrote: > If you've got sub-domains on a server, how do you access a root directory from a sub-domain? > As they are sub-domains, I obviously can't use $_SERVER['DOCUMENT_ROOT']; > > I thought $_SERVER['HTTP_HOST']; or $_SERVER['SERVER_NAME']; might do it, but it doesn't. > Is this possible? > TIA. Community email addresses: Post message: [email protected] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED] Shortcut URL to this page: http://groups.yahoo.com/group/php-list Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/php-list/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
