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[Queues & Workers](/categories/queues) 4. / 5. wtsergo/revolt-event-loop ActiveLibrary[Queues & Workers](/categories/queues) wtsergo/revolt-event-loop ========================= Rock-solid event loop for concurrent PHP applications. v1.0.7(1y ago)020MITPHPPHP >=8.1 Since Mar 14Pushed 1mo agoCompare [ Source](https://github.com/wtsergo/revolt-event-loop)[ Packagist](https://packagist.org/packages/wtsergo/revolt-event-loop)[ RSS](/packages/wtsergo-revolt-event-loop/feed)WikiDiscussions main Synced 1mo ago READMEChangelog (1)Dependencies (3)Versions (2)Used By (0) Revolt [![](https://camo.githubusercontent.com/942e017bf0672002dd32a857c95d66f28c5900ab541838c6c664442516309c8a/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6c6963656e73652d4d49542d626c75652e7376673f7374796c653d666c61742d737175617265)](blob/main/LICENSE) =========================================================================================================================================================================================================================================================================== [](#revolt-) Revolt is a rock-solid event loop for concurrent PHP applications. The usual PHP application spends most of its time waiting for I/O. While PHP is single threaded, [cooperative multitasking](https://en.wikipedia.org/wiki/Cooperative_multitasking) can be used to allow for concurrency by using the waiting time to do different things. PHP's traditional synchronous execution flow is easy to understand. Doing one thing at a time. If you query a database, you send the query and wait for a response from the database server. Once you have the response, you can start doing the next thing. Amp, ReactPHP, and other libraries have offered cooperative multitasking in PHP for a long time. However, their event-driven nature was incompatible to many existing interfaces and required a different thinking model. PHP 8.1 ships with fibers built-in, which offers cooperative multi-threading. Calls can be synchronous without promises or callbacks, while still allowing for non-blocking I/O. Every application making use of cooperative multitasking needs a single scheduler (also called event loop), which this package provides. Revolt is the result of combining years of experience of Amp's and ReactPHP's event loop implementations. However, it is not a full-blown framework for writing concurrent PHP applications, but only provides what's necessary as a common base. Different (strongly) opinionated libraries can be built on top of it and both Amp and ReactPHP will continue to co-exist. Installation ------------ [](#installation) It may surprise people to learn that the PHP standard library already has everything we need to write event-driven and non-blocking applications. This package can be installed as a [Composer](https://getcomposer.org/) dependency on PHP 8.1 and later. ``` composer require revolt/event-loop ``` Applications with many concurrent file descriptors require one of the [extensions](https://revolt.run/extensions). → [View documentation](https://revolt.run/) → [View examples](./examples) Versioning ---------- [](#versioning) `revolt/event-loop` follows the [semver](https://semver.org/) semantic versioning specification. License ------- [](#license) The MIT License (MIT). Please see [`LICENSE`](./LICENSE) file for more information. ### Health Score 37 — LowBetter than 82% of packages Maintenance76 Regular maintenance activity Popularity7 Limited adoption so far Community14 Small or concentrated contributor base Maturity45 Maturing project, gaining track record Bus Factor1 Top contributor holds 60% 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 Unknown Total 1 Last Release 421d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/c0cb21c3a3eba5c43d4e643bfaeef99c52b726c7ecff6488bbaf1c8e4fcbd245?d=identicon)[wtsergo](/maintainers/wtsergo) --- Top Contributors [![kelunik](https://avatars.githubusercontent.com/u/2743004?v=4)](https://github.com/kelunik "kelunik (63 commits)")[![trowski](https://avatars.githubusercontent.com/u/1628287?v=4)](https://github.com/trowski "trowski (29 commits)")[![wtsergo](https://avatars.githubusercontent.com/u/305326?v=4)](https://github.com/wtsergo "wtsergo (3 commits)")[![Nevay](https://avatars.githubusercontent.com/u/22509671?v=4)](https://github.com/Nevay "Nevay (2 commits)")[![danog](https://avatars.githubusercontent.com/u/7339644?v=4)](https://github.com/danog "danog (2 commits)")[![azjezz](https://avatars.githubusercontent.com/u/29315886?v=4)](https://github.com/azjezz "azjezz (1 commits)")[![xjaja](https://avatars.githubusercontent.com/u/5057757?v=4)](https://github.com/xjaja "xjaja (1 commits)")[![bwoebi](https://avatars.githubusercontent.com/u/3154871?v=4)](https://github.com/bwoebi "bwoebi (1 commits)")[![nhedger](https://avatars.githubusercontent.com/u/649677?v=4)](https://github.com/nhedger "nhedger (1 commits)")[![simPod](https://avatars.githubusercontent.com/u/327717?v=4)](https://github.com/simPod "simPod (1 commits)")[![tnsoftbear](https://avatars.githubusercontent.com/u/2427839?v=4)](https://github.com/tnsoftbear "tnsoftbear (1 commits)") --- Tags eventevent-loopasyncasynchronousschedulerconcurrencynon-blocking ### Code Quality TestsPHPUnit ### Embed Badge ![Health badge](/badges/wtsergo-revolt-event-loop/health.svg) ``` [![Health](https://phpackages.com/badges/wtsergo-revolt-event-loop/health.svg)](https://phpackages.com/packages/wtsergo-revolt-event-loop) ``` ### Alternatives [amphp/amp A non-blocking concurrency framework for PHP applications. 4.4k123.4M322](/packages/amphp-amp)[revolt/event-loop Rock-solid event loop for concurrent PHP applications. 91943.6M138](/packages/revolt-event-loop)[icicleio/icicle Icicle is a PHP library for writing asynchronous code using synchronous coding techniques. 1.1k150.9k14](/packages/icicleio-icicle)[recoil/recoil Asynchronous coroutines for PHP 7. 78961.5k7](/packages/recoil-recoil)[clue/reactphp-flux Flux, the lightweight stream processor to concurrently do many (but not too many) things at once, built on top of ReactPHP. 59118.6k1](/packages/clue-reactphp-flux)[recoil/react Integrate Recoil with ReactPHP. 32274.4k12](/packages/recoil-react) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)