Symfony ErrorHandler

In Symfony 4.4 the Debug component was replaced with the new ErrorHandler component. Let's have a quick look what changed and how you can use the component both in Symfony or standalone.

Transcript

1. Symfony Error Handler Denis Brumann ⚠ denis.brumann@sensiolabs.de ⁉ @dbrumann
6. Throwable Error Exception
7. Symfony\Component\ErrorHandler\ ErrorHandler::register()
10. Symfony\Component\ErrorHandler\ DebugClassLoader::enable()
12. Rendering error pages
13. Routing Configuration _errors: resource: '@FrameworkBundle/Resources/config/routing/errors.xml' prefix: /_error
14. HTML JSON XML
15. HTML JSON XML
16. HTML JSON XML
17. HTML JSON XML YAML
18. ErrorRenderer
19. Customizing Error Pages
20. TwigBundle Resources
21. Non-HTML Resources implements Symfony\Component\Serializer\Normalizer\ NormalizerInterface
22. public function supportsNormalization($data, string $format = null) { return $data instanceof FlattenException; }
24. Symfony\Component\HttpKernel\ EventListener\ErrorListener Symfony\Component\Console\ EventListener\ErrorListener
25. Symfony\Component\HttpKernel\ Controller\ErrorController
26. Custom Error Controller
27. HTML JSON XML Symfony\Component\Serializer\Normalizer\ NormalizerInterface
28. HTML JSON XML composer require twig composer require serializer
29. Docs https://symfony.com/doc/current/components/error_handler.html https://symfony.com/doc/current/controller/error_pages.html