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php-pico/event
==============

A PSR-14 Event Dispatcher package.

0.1.2(1mo ago)02MITPHP ^8.5

Since Jul 6Compare

[ Source](https://github.com/php-pico/event)[ Packagist](https://packagist.org/packages/php-pico/event)[ RSS](/packages/php-pico-event/feed)WikiDiscussions Synced 1w ago

READMEChangelog (3)Dependencies (3)Versions (4)Used By (0)

php-pico/event
==============

[](#php-picoevent)

A PSR-14 Event Dispatcher package.

Installation
------------

[](#installation)

```
composer require php-pico/event
```

Requires PHP ^8.5.

Usage
-----

[](#usage)

### Registering listeners

[](#registering-listeners)

```
use PhpPico\Event\ListenerProvider;

$listenerProvider = new ListenerProvider();

$listenerProvider->listen(UserRegistered::class, function (UserRegistered $event): void {
    // handle the event
});
```

Listeners also receive events for classes implementing the registered interface, or extending the registered class:

```
$listenerProvider->listen(Throwable::class, function (Throwable $event): void {
    // invoked for any Throwable, including subclasses
});
```

### Dispatching events

[](#dispatching-events)

```
use PhpPico\Event\EventDispatcher;

$dispatcher = new EventDispatcher($listenerProvider);

$dispatcher->dispatch(new UserRegistered($user));
```

Listeners are invoked in the order they were registered.

### Stoppable events

[](#stoppable-events)

Events implementing `Psr\EventDispatcher\StoppableEventInterface` can halt propagation to remaining listeners:

```
use Psr\EventDispatcher\StoppableEventInterface;

final class UserRegistered implements StoppableEventInterface
{
    private bool $stopped = false;

    public function stop(): void
    {
        $this->stopped = true;
    }

    public function isPropagationStopped(): bool
    {
        return $this->stopped;
    }
}
```

Once `stop()` is called from within a listener, no further listeners are invoked for that dispatch.

Extend `PhpPico\Event\AbstractStoppableEvent` to get this behavior for free:

```
use PhpPico\Event\AbstractStoppableEvent;

final class UserRegistered extends AbstractStoppableEvent
{
    public function __construct(
        public readonly User $user,
    ) {}
}
```

`AbstractStoppableEvent` already implements `stop()` and `isPropagationStopped()`, so the event class only needs to declare its own data.

Testing
-------

[](#testing)

```
composer test
```

###  Health Score

36

—

LowBetter than 79% of packages

Maintenance90

Actively maintained with recent releases

Popularity2

Limited adoption so far

Community2

Small or concentrated contributor base

Maturity43

Maturing project, gaining track record

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 ~0 days

Total

3

Last Release

48d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/33836112?v=4)[Kevin From](/maintainers/kevinfrom)[@kevinfrom](https://github.com/kevinfrom)

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/php-pico-event/health.svg)

```
[![Health](https://phpackages.com/badges/php-pico-event/health.svg)](https://phpackages.com/packages/php-pico-event)
```

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