The SitePoint PHP blog there's a tutorial posted showing you how to integrate your application with Bugsnag, the "last error monitor you'll need". Bugsnag is an external service that provides you more insight into the errors in your application and statistics around them.

The pursuit of building an error-free application continues. But in the meanwhile, we need to monitor our application’s errors and take action quickly. Many companies have tried to solve this problem, and one of the best on the market right now is Bugsnag. [...] In this article, we’re going to discover Bugsnag and integrate it into an existing Laravel application. You can clone the demo app from Github to follow along.

The article walks you through the setup of the demo application (cloned from GitHub) and the creation of a Bugsnag account with a 30 day free trial. It then shows how to integrate the PHP notifier package into your application, though the sample application is Laravel-based so they show how to use this package in the examples. From there they show how to provide your credentials, set up the environment for the app (ex: production, development, etc) and methods for sending various messages types and content over to the service. The post then looks at the Bugsnag dashboard, giving a brief overview of how it looks and what features it includes.