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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | # Sharing Kohana
Because Kohana follows a [front controller] pattern, which means that all requests are sent to `index.php`, the filesystem is very configurable. Inside of `index.php` you can change the `$application`, `$modules`, and `$system` paths.
[!!] There is a security check at the top of every Kohana file to prevent it from being accessed without using the front controller. Also, the `.htaccess` file should protect those folders as well. Moving the application, modules, and system directories to a location that cannot be accessed vie web can add another layer of security, but is optional.
The `$application` variable lets you set the directory that contains your application files. By default, this is `application`. The `$modules` variable lets you set the directory that contains module files. The `$system` variable lets you set the directory that contains the default Kohana files. You can move these three directories anywhere.
For instance, by default the directories are set up like this:
www/
index.php
application/
modules/
system/
You could move the directories out of the web root so they look like this:
application/
modules/
system/
www/
index.php
Then you would need to change the settings in `index.php` to be:
$application = '../application';
$modules = '../modules';
$system = '../system';
## Sharing system and modules
To take this a step further, we could point several kohana apps to the same system and modules folders. For example (and this is just an example, you could arrange these anyway you want):
apps/
foobar/
application/
www/
bazbar/
application/
www/
kohana/
3.0.6/
3.0.7/
3.0.8/
modules/
And you would need to change the settings in `index.php` to be:
$application = '../application';
$system = '../../../kohana/3.0.6';
$modules = '../../../kohana/modules';
Using this method each app can point to a central copy of kohana, and you can add a new version, and quickly update your apps to point to the new version by editing their `index.php` files.
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