Step 1
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You need a checkout of the PPI framework.
Check this out to a folder for example: /var/www/ppi-framework/
Checkout the PPI Skeleton App to a folder for example: /var/www/ppi-skeleton-app/
Update your skeleton app's index.php to include the framework's path/init.php file.
For example: include_once('../ppi-framework/PPI/init.php');
Step 2
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-> You need to update the skeleton apps config file to suit your HTTP path.
The config file is located: /var/www/ppi-skeleton-app/App/Config/general.ini
This config file has two sections, [development] and [production]. By default you'll be editing [development]
system.base_url = http://localhost/ppi-skeleton-app/ <-- Note this must end in a slash.
You are ready to go!