Zend framework 2 recommended way for error handling

Question

I noticed that the Skeleton Application that Zend provides does not handle error 500. I know that in ZF1 there was an ErrorController that took care of that. I have done some research online, but did not find a clear cut solution for this.

So what is the best way for error handling in ZF2. Would it be on per module basis or some global exception/error handler?

I know that another solution would be to add ini_set('display_errors', true); to my index.php, but I don't really like that solution. It seems that the framework should provide some way for handling errors.

Answer 1

You can handle the exceptions in anyway you want after catching it as the following example in which you are catching the exception globally...:

In the onBootstrap method in your Module.php you can attach a function to execute when an event occurs, the following attach a function to be executed when an error (exception) is raised:

public function onBootstrap(MvcEvent $e)
{
    $application = $e->getApplication();
    $em = $application->getEventManager();
    //handle the dispatch error (exception) 
    $em->attach(\Zend\Mvc\MvcEvent::EVENT_DISPATCH_ERROR, array($this, 'handleError'));
    //handle the view render error (exception) 
    $em->attach(\Zend\Mvc\MvcEvent::EVENT_RENDER_ERROR, array($this, 'handleError'));
}

and then define the function to handle the error in any way you want, the following is an example:

public function handleError(MvcEvent $e)
{
    //get the exception
    $exception = $e->getParam('exception');
    //...handle the exception... maybe log it and redirect to another page, 
    //or send an email that an exception occurred...
}