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Posted by J.O. Aho on 10/11/64 11:56
Pupkin wrote:
> In article <4l96eaFsrm0U1@individual.net>, user@example.net says...
>> Pupkin wrote:
>>
>>> Is there a way in PHP to set a global variable that will tell all of the
>>> root-relative links in this dev site to really look here for a starting
>>> point: "http://www.site.com/client/dev/2006/"?
>> That depends on how the thing is coded, I would guess that the variable that
>> you set to "/client/dev/2006/" was all you needed to change.
>
> That was a variable that only sits in front of all of the site includes,
> all of the root-relative links in the site are still looking at
> http://www.site.com/ as the root rather than
> http://www.site.com/client/dev/2006/.
>
> I know the easiest way to change this is set-up a new dev site rather
> than using a subfolder in a preexisting site, but I can't make that call
> on this project.
Modify the code instead to be independent of being in a "root" directory or in
a sub directory.
> Thanks. I've found that most docs at this level are written for tech-
> types who are already fluent in the vocab, rather than hand-holding a
> newbie through the basics, and that's what I'd like to find, if
> possible.
As a newbie back in the early 90's I used those docs to configure my first
Apache server to run on AmigaOS and it took me a couple of years more before I
used an Unix machine for the first time.
> In IIS, you set the root folder of the site via the management console,
> and that is the root folder. In all of the PHP sites I've seen there are
> always a couple of folder levels outside the web site root (usually like
> /usr/sitename/www/) and these seem to contain necessary php files like
> pear, and setting root-relative links, especially with include files,
> can be a real pain, in my limited experience.
In apache you set the document root with DocumentRoot option in the apache
config file (you can have different for each virtual host).
For security reasons you may not want it to be possible for someone outside
the server to execute some scripts, those you place outside the root for the
website, this way no one can use an url and try to run a script (think this is
still possible in iis, which is a bad bad thing). You may want to place files
that includes login and passwords for sql servers outside too, just in case of
php would be disabled at a upgrade (in that case you would send the php as
plain text and anyone could read those passwords and logins).
Say you have:
DocumentRoot /usr/sitename/www/
Then you place files that you don't want to be accessed from the outside in a
directory in /usr/sitename, say /usr/sitename/secretfiles, the php scripts can
access the files as long as they are readable for the user as whom the
webserver is run as, but you can't use an url like:
http://www.site.com/../secretfiles/displayall.php
> I thought there was a quick way in PHP to set a built-in function to a
> specified virtual root path, but maybe not.
All settings for php itself is stored in php.ini, but there is no specific
root directory setting for php, thats completely up to the author of the
scripts to define how s/he wants that be set. Keep in mind that php is
something that access the whole system, but can be limited in where it's
allowed to run, but that won't change how it works.
In the scripts you are supposed to work with, they most likely use
$_SERVER['SERVER_NAME'], which would only give you the "www.site.com" part,
you need to add a $_SERVER['REQUEST_URI'] to get the
"/client/dev/2006/scriptname.php" part.
http://www.php.net/manual/en/reserved.variables.php
//Aho
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