Re: [PHP] Difficulty navigating symlinks
Jim Lucas wrote: Seth Foss wrote: Jim Lucas wrote: Seth Foss wrote: Hi everyone, I am trying to run multiple sites on the same server, that have mostly identical code - a pre-built application. Anyway, I would like to save disk space by specifying independent configuration files for each site, then using symbolic links to access the rest of the code for the application. I have managed to configure apache so one such directory is accessed via a symlink, which is ok. However, a file within the linked directory attempts to include the configuration file (../config.php) from the actual parent directory instead of the directory containing the symlink. Is there any way to configure apache or php to trace back the symlink when using '..', or can that only go one direction? Thanks, Seth You can set the include path for your code to include the parent directory from where the symlink is and then remove the ../ part of the call. Jim, I had considered that, but I plan to have multiple directories following symlinks to the same place. For example, /var/www/site1 has a config.php and a symlink to var/www/universal/app while /var/www/site2 has a different config.php and a symlink to var/www/universal/app var/www/universal/app has an index.php with include(../config.php) that needs the config from the site that is using it (i.e., sometimes site1, sometimes site2) Does that make sense? Or did I misunderstand your suggestion? Thanks, Seth You might have miss understood me. In your VHOST entries, make an entry on each domain VirtualHost X.X.X.X DocumentRoot /path/to/example.com/public_html ServerName example.com php_value include_path '/path/to/example.com/public_html /VirtualHost Now you have your app symlinked into the public_html dir as such (guessing here) ln -s /path/to/my/app /path/to/example.com/public_html/app Now, in the app directory you have index.php that has include '../config.php'; Your problem is that the ../config.php reference refers to /path/to/my/app/../config.php == /path/to/my/ instead of /path/to/example.com/public_html/app/../config.php Correct??? This is because it is being referenced logically from /path/to/my/app/index.php any symbolically from /path/to/example.com/public_html/app/index.php If that is the case, add the vHOST entry that I talked about above, then reference the config file as include 'config.php'; and it will then look in the include_path location(s) for the files and not think of referencing the current directory that it is in. Mind you that you can also enter this information into a .htaccess that is located in the /path/to/example.com/public_html/ directory. As long as .htaccess files are allowed. I usually have my include_path set to .:/path/to/example.com/public_html/ in my vhosts entry for each domain. Hope this helps I did misunderstand. This approach is working for me. Unfortunately, as I am implementing it, it seems there are more files than I expected that utilize a series of '..'s instead of the absolute path from the config file, and more files than I expected that include the config file themselves. However, these would cause me the same headaches with any of the proposed solutions. Long story short, problem is solved. Setting the include path in VHOST lets me set it uniquely for each site, and then including config.php directly (no ..) uses that include path to grab the appropriate config file. Thanks to everyone for your help, and especially you, Jim, for your elegant solution. Seth -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Difficulty navigating symlinks
Jim Lucas wrote:
Robert Cummings wrote:
On Thu, 2008-10-23 at 09:46 -0400, Seth Foss wrote:
Jim Lucas wrote:
Seth Foss wrote:
Jim Lucas wrote:
Seth Foss wrote:
Hi everyone,
I am trying to run multiple sites on the same server, that have mostly
identical code - a pre-built application.
Anyway, I would like to save disk space by specifying independent
configuration files for each site, then using symbolic links to access
the rest of the code for the application.
I have managed to configure apache so one such directory is accessed via
a symlink, which is ok. However, a file within the linked directory
attempts to include the configuration file (../config.php) from the
actual parent directory instead of the directory containing the symlink.
Is there any way to configure apache or php to trace back the symlink
when using '..', or can that only go one direction?
Thanks,
Seth
You can set the include path for your code to include the parent
directory
from where the symlink is and then remove the ../ part of the call.
Jim,
I had considered that, but I plan to have multiple directories following
symlinks to the same place.
For example,
/var/www/site1 has a config.php and a symlink to var/www/universal/app
while
/var/www/site2 has a different config.php and a symlink to
var/www/universal/app
var/www/universal/app has an index.php with include(../config.php) that
needs the config from the site that is using it (i.e., sometimes site1,
sometimes site2)
Does that make sense? Or did I misunderstand your suggestion?
Thanks,
Seth
You might have miss understood me.
In your VHOST entries, make an entry on each domain
VirtualHost X.X.X.X
DocumentRoot /path/to/example.com/public_html
ServerName example.com
php_value include_path '/path/to/example.com/public_html
/VirtualHost
Now you have your app symlinked into the public_html dir as such (guessing here)
ln -s /path/to/my/app /path/to/example.com/public_html/app
Now, in the app directory you have index.php that has include '../config.php';
Your problem is that the ../config.php reference refers to
/path/to/my/app/../config.php == /path/to/my/
instead of
/path/to/example.com/public_html/app/../config.php
Correct???
This is because it is being referenced logically from
/path/to/my/app/index.php
any symbolically from
/path/to/example.com/public_html/app/index.php
If that is the case, add the vHOST entry that I talked about above, then
reference the config file as include 'config.php'; and it will then look in
the include_path location(s) for the files and not think of referencing the
current directory that it is in.
Mind you that you can also enter this information into a .htaccess that is
located in the /path/to/example.com/public_html/ directory. As long as
.htaccess files are allowed.
I usually have my include_path set to .:/path/to/example.com/public_html/ in
my vhosts entry for each domain.
Hope this helps
I did misunderstand. This approach is working for me. Unfortunately, as
I am implementing it, it seems there are more files than I expected that
utilize a series of '..'s instead of the absolute path from the config
file, and more files than I expected that include the config file
themselves.
However, these would cause me the same headaches with any of the
proposed solutions.
Long story short, problem is solved. Setting the include path in VHOST
lets me set it uniquely for each site, and then including config.php
directly (no ..) uses that include path to grab the appropriate config file.
Thanks to everyone for your help, and especially you, Jim, for your
elegant solution.
You could probably set a value in the vhost that makes the absolute path
to the web root available to your script. Personally, I hate to rely on
anything magical like non-standard include paths :)
Cheers,
Rob.
You are probably right.
I was thinking, why could the app know its home and then also use just
DOCUMENT_ROOT?
I can't imagine a time that DOCUMENT_ROOT would not be correct, even from a
symlinked directory.
/app/index.php
?php
define('ROOT', $_SERVER['DOCUMENT_ROOT']);
include ROOT . 'config.php';
...
?
You could also then use this ROOT constant else where in your code when you
need to refer to the website root path, instead of the app path
I am ashamed to say that so much have my php coding experience has been
the modification of third-party apps that I never even knew the $_SERVER
variable existed. Even if I had, I probably would have assumed that it
would have given me the app path instead of the website path.
Tried it using Stut's snippet, and it works (not that they should be
related, but just figured I'd mention that it works whether i added the
include path to my VHOST or not).
Two great solutions! I
[PHP] Difficulty navigating symlinks
Hi everyone, I am trying to run multiple sites on the same server, that have mostly identical code - a pre-built application. Anyway, I would like to save disk space by specifying independent configuration files for each site, then using symbolic links to access the rest of the code for the application. I have managed to configure apache so one such directory is accessed via a symlink, which is ok. However, a file within the linked directory attempts to include the configuration file (../config.php) from the actual parent directory instead of the directory containing the symlink. Is there any way to configure apache or php to trace back the symlink when using '..', or can that only go one direction? Thanks, Seth -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Difficulty navigating symlinks
Robert Cummings wrote: On Wed, 2008-10-22 at 11:59 -0400, Seth Foss wrote: Hi everyone, I am trying to run multiple sites on the same server, that have mostly identical code - a pre-built application. Anyway, I would like to save disk space by specifying independent configuration files for each site, then using symbolic links to access the rest of the code for the application. I have managed to configure apache so one such directory is accessed via a symlink, which is ok. However, a file within the linked directory attempts to include the configuration file (../config.php) from the actual parent directory instead of the directory containing the symlink. Is there any way to configure apache or php to trace back the symlink when using '..', or can that only go one direction? Why not use CVS or SVN and just checkout the code? Sure you have it in multiple places that way, but it's a cinch to deploy and allows rollback to specific versions on any given tree. Cheers, Rob. Thanks for the advice, Rob. I actually do have CVS and have been using it the way you describe. However, the sheer quantity of websites is beginning to overwhelm our disk space, especially when you consider that everything but the configuration is identical, and we do almost no modification to 95% of the code. Anyway, if it isn't possible, then that's fine. I'm just trying to use our resources as efficiently as possible. Does anyone have any other ideas? Seth -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Difficulty navigating symlinks
Jim Lucas wrote: Seth Foss wrote: Hi everyone, I am trying to run multiple sites on the same server, that have mostly identical code - a pre-built application. Anyway, I would like to save disk space by specifying independent configuration files for each site, then using symbolic links to access the rest of the code for the application. I have managed to configure apache so one such directory is accessed via a symlink, which is ok. However, a file within the linked directory attempts to include the configuration file (../config.php) from the actual parent directory instead of the directory containing the symlink. Is there any way to configure apache or php to trace back the symlink when using '..', or can that only go one direction? Thanks, Seth You can set the include path for your code to include the parent directory from where the symlink is and then remove the ../ part of the call. Jim, I had considered that, but I plan to have multiple directories following symlinks to the same place. For example, /var/www/site1 has a config.php and a symlink to var/www/universal/app while /var/www/site2 has a different config.php and a symlink to var/www/universal/app var/www/universal/app has an index.php with include(../config.php) that needs the config from the site that is using it (i.e., sometimes site1, sometimes site2) Does that make sense? Or did I misunderstand your suggestion? Thanks, Seth -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
