what do I set my allowed_include path to?

I've a server with 50 domains in the vhosts folder. I want all 50
websites to run from a single copy of a PHP/MySql cms. Here is a
typical path to the index.htm file of a site:

/usr/local/www/vhosts/publicpen.com/htdocs/index.htm


For all the domains to share this software, I want to put the cms
here:

/usr/local/www/

Normally PHP won't let include() grab things that far above a web
site. I realize I need to set a path in php.ini. I go look at that
file, and this is what I see (below). I'm confused about what I need
to set. It's all commented out. What is the default, then?






;;;;;;;;;;;;;;;;;;;;;;;;;
; Paths and Directories ;
;;;;;;;;;;;;;;;;;;;;;;;;;

; UNIX: "/path1:/path2"
;include_path = ".:/php/includes"
;
; Windows: "\path1;\path2"
;include_path = ".;c:\php\includes"

; The root of the PHP pages, used only if nonempty.
doc_root =

; The directory under which PHP opens the script using /~usernamem
used only
; if nonempty.
user_dir =

; Directory in which the loadable extensions (modules) reside.
extension_dir = ./

; Whether or not to enable the dl() function. The dl() function does
NOT work
; properly in multithreaded servers, such as IIS or Zeus, and is
automatically
; disabled on them.
enable_dl = On

lkrubner@geocities.com (lawrence) wrote in message news:<da7e68e8.0311131441.5d019755@posting.google. com>...
> I've a server with 50 domains in the vhosts folder. I want all 50
> websites to run from a single copy of a PHP/MySql cms. Here is a
> typical path to the index.htm file of a site:
>
> /usr/local/www/vhosts/publicpen.com/htdocs/index.htm
>
>
> For all the domains to share this software, I want to put the cms
> here:
>
> /usr/local/www/
>
> Normally PHP won't let include() grab things that far above a web
> site. I realize I need to set a path in php.ini. I go look at that
> file, and this is what I see (below). I'm confused about what I need
> to set. It's all commented out. What is the default, then?
>
>
>
>
>
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;
> ; Paths and Directories ;
> ;;;;;;;;;;;;;;;;;;;;;;;;;
>
> ; UNIX: "/path1:/path2"
> ;include_path = ".:/php/includes"
> ;
> ; Windows: "\path1;\path2"
> ;include_path = ".;c:\php\includes"
>
> ; The root of the PHP pages, used only if nonempty.
> doc_root =
>
> ; The directory under which PHP opens the script using /~usernamem
> used only
> ; if nonempty.
> user_dir =
>
> ; Directory in which the loadable extensions (modules) reside.
> extension_dir = ./
>
> ; Whether or not to enable the dl() function. The dl() function does
> NOT work
> ; properly in multithreaded servers, such as IIS or Zeus, and is
> automatically
> ; disabled on them.
> enable_dl = On



I guess what I'm really asking is, by default, how many levels above
the website does PHP let you go? It looks like the include_path is
commented out in my php.ini file, so I imagine some kind of default is
at work. Or are there no limits, if it is commented out?