Due to security reasons, I have to split one project to divisions (client, admin, ...), and deploy them to different web servers. These divisions have one common script base, but each division has its own functions. As an IDE I use PhpStorm.
The question: what is the best way to organize project's structure and settings, so the common core part will be visible for IDE indexing in all project's divisions, but at the same time, being maintained from a single project (perhaps, standalone)?
In Java you can do lib jar files for further linking in various projects. But how it can be done in PHP?

