zend framework2 - Pass data to controller from Module.php

Solution:

The controller has access to theMvcEvent you can setup an event listener to attach arbitrary data to it and then fetch it within the controller.

Module.php

public function onBootstrap(MvcEvent $event)
{
   $event->setParam('foo', 'bar');
}
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Controller

public function fooAction() {
  $foo = $this->getEvent()->getParam('foo', false);
}
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@JonDay suggested an event listener which would also work well.

public function onBootstrap(MvcEvent $event)
{
   $application  = $event->getApplication();
   $eventManager = $application->getEventManager()->getSharedManager();

   $eventManager->attach('Zend\Mvc\Controller\AbstractActionController', 'dispatch', function($event) {
      $controller = $event->getTarget();

      // Set public property
      $controller->foo = 'bar';

      // OR protected with setter
      $controller->setFoo('bar');

   });
}
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