PPI v2 Extension DI Container

From the Bootstrap wiki document you can clearly set classes and use $this->getService('dependency.name').

However, in this case we need dependencies that are local to the Extension itself.

One concept is to have an Extension.php file in each /ext/ folder. This is notably similar to ZF2's Module.php class.

I believe there could be a simple di.php such as Ext/<ExtName>/Config/di.php. It could contain an array such as:

<?php
// $dep['dep.name'] = "\Path\To\Dependency";
$dep['user.auth'] = "\Ext\Users\Auth\User";
$dep['user.entity'] = "\Ext\Users\Entity\User";

// Respectively from the controller you'd be able to do
$authClass = $this->getService('user.auth');
$auth = new $authClass();
if($auth->verify($username, $password)) {
    $entity = $this->getService('user.entity');
    $user = new $entity($someUserData);
}