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Fast Forward Event Dispatcher

fast-forward/event-dispatcher is a lightweight event dispatcher package for PHP applications that want PSR-14 interoperability, Symfony subscriber compatibility, and straightforward Fast Forward container integration.

This package is especially useful when you want to:

  • dispatch plain PHP objects as domain or application events;
  • keep listener registration explicit and testable;
  • mix PSR-14 listeners, Symfony subscribers, named events, and attribute-based listeners in one application;
  • add wildcard listeners for cross-cutting concerns such as logging, metrics, or audit trails;
  • observe listener failures through an ErrorEvent while still rethrowing the original exception.

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What Makes This Package Different

  • It dispatches typed object events through any PSR-14 listener provider.
  • It can also dispatch the same event a second time as a named wrapper, which makes string-based event names possible without giving up object events.
  • It ships a service provider that automatically classifies configured listeners into the right runtime strategy.
  • It includes a small wildcard-provider base class for cross-cutting observers that should see every dispatched object.
  • It supports Symfony EventSubscriberInterface and AsEventListener attributes without turning your whole application into a Symfony application.

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