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[Queues & Workers](/categories/queues) 4. / 5. sabre/event ActiveLibrary[Queues & Workers](/categories/queues) sabre/event =========== sabre/event is a library for lightweight event-based programming 6.0.1(1y ago)35227.4M—3.5%24[4 issues](https://github.com/sabre-io/event/issues)[1 PRs](https://github.com/sabre-io/event/pulls)20BSD-3-ClausePHPPHP ^7.4 || ^8.0CI passing Since Jun 29Pushed 3w ago21 watchersCompare [ Source](https://github.com/sabre-io/event)[ Packagist](https://packagist.org/packages/sabre/event)[ Docs](http://sabre.io/event/)[ RSS](/packages/sabre-event/feed)WikiDiscussions master Synced 1mo ago READMEChangelog (10)Dependencies (6)Versions (31)Used By (20) sabre/event =========== [](#sabreevent) A lightweight library for event-based development in PHP. This library provides the following event-based concepts: 1. EventEmitter. 2. Promises. 3. An event loop. 4. Co-routines. Full documentation can be found on [the website](https://sabre.io/event/). Installation ------------ [](#installation) Make sure you have [composer](https://getcomposer.org/) installed, and then run: ``` composer require sabre/event "^6.1" ``` This package requires PHP 8.2. Build status ------------ [](#build-status) [![Build Status](https://github.com/sabre-io/event/actions/workflows/ci.yml/badge.svg)](https://github.com/sabre-io/event/actions/workflows/ci.yml/badge.svg) releaseminimum PHP versionmasterPHP 8.26.0PHP 7.45.1PHP 7.1Questions? ---------- [](#questions) Open a ticket on [GitHub](https://github.com/sabre-io/event/issues/). Made at fruux ------------- [](#made-at-fruux) This library is being developed by [fruux](https://fruux.com/). Drop us a line for commercial services or enterprise support. ### Health Score 67 — FairBetter than 100% of packages Maintenance68 Regular maintenance activity Popularity67 Solid adoption and visibility Community39 Small or concentrated contributor base Maturity79 Established project with proven stability Bus Factor1 Top contributor holds 52.7% 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 ~176 days Recently: every ~134 days Total 27 Last Release 125d ago Major Versions 2.0.x-dev → 3.0.0-alpha12015-10-24 3.0.0 → 4.0.02016-09-20 3.0.x-dev → 5.0.02016-10-23 5.1.4 → 6.0.02022-08-29 5.1.7 → 6.0.12024-09-06 PHP version history (7 changes)0.0.1PHP >=5.4.1 3.0.0-alpha1PHP >=5.5 4.0.0PHP >=7.0 5.1.0PHP ^7.1 5.1.1PHP ^7.1|^8.0 5.1.2PHP ^7.1 || ^8.0 6.0.0PHP ^7.4 || ^8.0 ### Community Maintainers ![](https://www.gravatar.com/avatar/2ec28c32d012f276f61b0b58cabe3c8f674166732d9b20eeddc3f9807857ba10?d=identicon)[evert](/maintainers/evert) ![](https://www.gravatar.com/avatar/d916220fea2bfe2d822214b0f188d1087035c66245431ae0dc2df4fbfbf81f6c?d=identicon)[dominik](/maintainers/dominik) --- Top Contributors [![evert](https://avatars.githubusercontent.com/u/178960?v=4)](https://github.com/evert "evert (207 commits)")[![phil-davis](https://avatars.githubusercontent.com/u/1535615?v=4)](https://github.com/phil-davis "phil-davis (126 commits)")[![staabm](https://avatars.githubusercontent.com/u/120441?v=4)](https://github.com/staabm "staabm (20 commits)")[![DeepDiver1975](https://avatars.githubusercontent.com/u/1005065?v=4)](https://github.com/DeepDiver1975 "DeepDiver1975 (10 commits)")[![TysonAndre](https://avatars.githubusercontent.com/u/1904430?v=4)](https://github.com/TysonAndre "TysonAndre (5 commits)")[![Hywan](https://avatars.githubusercontent.com/u/946104?v=4)](https://github.com/Hywan "Hywan (5 commits)")[![sunverwerth](https://avatars.githubusercontent.com/u/2094371?v=4)](https://github.com/sunverwerth "sunverwerth (4 commits)")[![DominikTo](https://avatars.githubusercontent.com/u/1384635?v=4)](https://github.com/DominikTo "DominikTo (4 commits)")[![dependabot[bot]](https://avatars.githubusercontent.com/in/29110?v=4)](https://github.com/dependabot[bot] "dependabot[bot] (3 commits)")[![felixfbecker](https://avatars.githubusercontent.com/u/10532611?v=4)](https://github.com/felixfbecker "felixfbecker (2 commits)")[![DavidPrevot](https://avatars.githubusercontent.com/u/3936728?v=4)](https://github.com/DavidPrevot "DavidPrevot (2 commits)")[![cedric-anne](https://avatars.githubusercontent.com/u/33253653?v=4)](https://github.com/cedric-anne "cedric-anne (2 commits)")[![vinkla](https://avatars.githubusercontent.com/u/499192?v=4)](https://github.com/vinkla "vinkla (1 commits)")[![SamMousa](https://avatars.githubusercontent.com/u/547021?v=4)](https://github.com/SamMousa "SamMousa (1 commits)")[![ahackschmitz](https://avatars.githubusercontent.com/u/118912?v=4)](https://github.com/ahackschmitz "ahackschmitz (1 commits)") --- Tags asyncpluginpromiseeventssignalreactorhookscoroutineEventEmittereventloop ### Code Quality TestsPHPUnit Static AnalysisPHPStan Code StylePHP CS Fixer Type Coverage Yes ### Embed Badge ![Health badge](/badges/sabre-event/health.svg) ``` [![Health](https://phpackages.com/badges/sabre-event/health.svg)](https://phpackages.com/packages/sabre-event) ``` ### Alternatives [amphp/amp A non-blocking concurrency framework for PHP applications. 4.4k123.4M323](/packages/amphp-amp)[icicleio/icicle Icicle is a PHP library for writing asynchronous code using synchronous coding techniques. 1.1k150.9k14](/packages/icicleio-icicle)[react/promise-timer A trivial implementation of timeouts for Promises, built on top of ReactPHP. 34141.9M96](/packages/react-promise-timer)[react/promise-stream The missing link between Promise-land and Stream-land for ReactPHP 11512.9M45](/packages/react-promise-stream)[recoil/recoil Asynchronous coroutines for PHP 7. 78961.5k7](/packages/recoil-recoil)[recoil/react Integrate Recoil with ReactPHP. 32274.4k12](/packages/recoil-react) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)