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psr/event-dispatcher
====================

Standard interfaces for event handling.

1.0.0(7y ago)2.3k618.8M—5.4%23[2 PRs](https://github.com/php-fig/event-dispatcher/pulls)20MITPHPPHP >=7.2.0

Since Aug 3Pushed 2y ago18 watchersCompare

[ Source](https://github.com/php-fig/event-dispatcher)[ Packagist](https://packagist.org/packages/psr/event-dispatcher)[ RSS](/packages/psr-event-dispatcher/feed)WikiDiscussions master Synced 1mo ago

READMEChangelogDependenciesVersions (7)Used By (20)

Event Dispatcher
================

[](#event-dispatcher)

This repository holds all interfaces related to [PSR-14 (Event Dispatcher)](https://www.php-fig.org/psr/psr-14/).

Note that this is not an Event Dispatcher implementation of its own. It is merely interfaces that describe the components of an Event Dispatcher.

You can find [implementations](https://packagist.org/providers/psr/event-dispatcher-implementation) and [installation instructions](https://packagist.org/packages/psr/event-dispatcher) for the specification on the packagist.

###  Health Score

55

—

FairBetter than 98% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity81

Widely adopted with strong download metrics

Community51

Growing community involvement

Maturity61

Established project with proven stability

 Bus Factor1

Top contributor holds 51% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~31 days

Total

6

Last Release

2687d ago

Major Versions

0.7.0 → 1.0.02019-01-08

PHP version history (2 changes)0.3.0PHP >=7.1.0

0.7.0PHP >=7.2.0

### Community

Maintainers

![](https://www.gravatar.com/avatar/b93dc5a9591fbfe3ead8b344eeddb3a8b10191e3696afcc93bed806629c2d724?d=identicon)[fig](/maintainers/fig)

![](https://avatars.githubusercontent.com/u/147145?v=4)[Cees-Jan Kiewiet](/maintainers/WyriHaximus)[@WyriHaximus](https://github.com/WyriHaximus)

![](https://www.gravatar.com/avatar/12e28c223b88445f07d697c8805bd856066c947f70b535f6a7e00d2cb311c3c2?d=identicon)[Crell](/maintainers/Crell)

---

Top Contributors

[![Crell](https://avatars.githubusercontent.com/u/254863?v=4)](https://github.com/Crell "Crell (26 commits)")[![WyriHaximus](https://avatars.githubusercontent.com/u/147145?v=4)](https://github.com/WyriHaximus "WyriHaximus (12 commits)")[![Jean85](https://avatars.githubusercontent.com/u/6729988?v=4)](https://github.com/Jean85 "Jean85 (4 commits)")[![gnumoksha](https://avatars.githubusercontent.com/u/696797?v=4)](https://github.com/gnumoksha "gnumoksha (3 commits)")[![J0WI](https://avatars.githubusercontent.com/u/5710638?v=4)](https://github.com/J0WI "J0WI (1 commits)")[![ashnazg](https://avatars.githubusercontent.com/u/100170?v=4)](https://github.com/ashnazg "ashnazg (1 commits)")[![kaznovac](https://avatars.githubusercontent.com/u/203604?v=4)](https://github.com/kaznovac "kaznovac (1 commits)")[![localheinz](https://avatars.githubusercontent.com/u/605483?v=4)](https://github.com/localheinz "localheinz (1 commits)")[![Wosi](https://avatars.githubusercontent.com/u/3448684?v=4)](https://github.com/Wosi "Wosi (1 commits)")[![erikn69](https://avatars.githubusercontent.com/u/4933954?v=4)](https://github.com/erikn69 "erikn69 (1 commits)")

---

Tags

psreventspsr-14

### Embed Badge

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###  Alternatives

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The Doctrine Event Manager is a simple PHP event system that was built to be used with the various Doctrine projects.

6.1k501.1M115](/packages/doctrine-event-manager)[laminas/laminas-eventmanager

Trigger and listen to events within a PHP application

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PHP library for working with recurrence rules

1.6k15.7M40](/packages/simshaun-recurr)[crell/tukio

A robust, stand-alone PSR-14 event dispatcher implementation.

112183.8k13](/packages/crell-tukio)[fig/event-dispatcher-util

Useful utility classes and traits for implementing the PSR events standard

27423.2k19](/packages/fig-event-dispatcher-util)

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