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[Queues & Workers](/categories/queues) 4. / 5. kraken-php/loop ActiveLibrary[Queues & Workers](/categories/queues) kraken-php/loop =============== Kraken Framework Loop Component. v0.4.1(9y ago)692.4k—9.4%118MITPHPPHP >=5.6.7 Since Sep 16Pushed 9y ago1 watchersCompare [ Source](https://github.com/kraken-php/loop)[ Packagist](https://packagist.org/packages/kraken-php/loop)[ Docs](http://kraken-php.com)[ RSS](/packages/kraken-php-loop/feed)WikiDiscussions master Synced yesterday READMEChangelogDependencies (1)Versions (9)Used By (18) Kraken Loop Component ===================== [](#kraken-loop-component) [![Build Status](https://camo.githubusercontent.com/af15010c36476fc4e6c49984421bf2b84750be2adc45fc8bebf1b90d9a7b52c3/68747470733a2f2f7472617669732d63692e6f72672f6b72616b656e2d7068702f6672616d65776f726b2e737667)](https://travis-ci.org/kraken-php/framework)[![Total Downloads](https://camo.githubusercontent.com/5ffb859d788dbc8f1420cc41064332cc7ceb92c86c5d1153e0f60c33e96a19eb/68747470733a2f2f706f7365722e707567782e6f72672f6b72616b656e2d7068702f6c6f6f702f646f776e6c6f616473)](https://packagist.org/packages/kraken-php/loop)[![Latest Stable Version](https://camo.githubusercontent.com/6b03ca4ade8205b3bfb7bf3f6abc664da1a8dadc40d070ca781508fd7e34a474/68747470733a2f2f706f7365722e707567782e6f72672f6b72616b656e2d7068702f6c6f6f702f762f737461626c65)](https://packagist.org/packages/kraken-php/loop)[![Latest Unstable Version](https://camo.githubusercontent.com/fabc13014686f7474fd7e6c488624ebee0874d48e796caab7cab12ded4875c56/68747470733a2f2f706f7365722e707567782e6f72672f6b72616b656e2d7068702f6c6f6f702f762f756e737461626c65)](https://packagist.org/packages/kraken-php/loop)[![License](https://camo.githubusercontent.com/7b3d640f212d4ca5dfa30751f70cef9fd309f7b19fdd33448b776f26fdfdd42f/68747470733a2f2f706f7365722e707567782e6f72672f6b72616b656e2d7068702f6672616d65776f726b2f6c6963656e7365)](https://packagist.org/packages/kraken-php/framework)[![Kraken Compatible](https://camo.githubusercontent.com/1b4bd0ba007b4666bb6e1a081a7aeeafd8c9cfcaeab74fc4121ac3e353e3b51f/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6b72616b656e2d636f6d70617469626c652d3662303261662e737667)](https://github.com/kraken-php/framework) > **Note:** This repository is a part of [Kraken Framework](https://github.com/kraken-php/framework), but **can be used freely as standalone library**. If you are interested in more asynchronous components for PHP, check out the rest of [Kraken repository](https://github.com/kraken-php) or see our [asynchronous application skeleton](https://github.com/kraken-php/kraken) example. Description ----------- [](#description) Loop is a component that provides abstraction layer for writing asynchronous code in PHP on single thread or process with usage of single or multiple loops. Feature Highlights ------------------ [](#feature-highlights) Loop features: - Interface for writing asynchronous code on single Thread or Process, - File descriptor polling, - One-time and periodic timers, - Deferred execution of callbacks, - Support for StreamSelect -based loops, - Support for LibEvent -based loops, - Support for LibEv -based loops, - Support for ExtEvent -based loops, - Support for using multiple loops with multiple execution flows, - Support for switching between loops and importing/exporting its unfinished queues, - ReactPHP compatibility, - ReactPHP EventLoop adapters, - Kraken Framework compatibility, - ...and more. Examples -------- [](#examples) See more examples in [official documentation](http://kraken-php.com/docs/api-log). Requirements ------------ [](#requirements) - PHP-5.6 or PHP-7.0+, - UNIX or Windows OS. Installation ------------ [](#installation) ``` composer require kraken-php/loop ``` Tests ----- [](#tests) Tests are provided within our write-only [Framework repository](https://github.com/kraken-php/framework). Documentation ------------- [](#documentation) Documentation for this module can be found in the [official documentation](http://kraken-php.com/docs/api-log). Contributing ------------ [](#contributing) This library is read-only subtree split of Kraken Framework. To make contributions, please go to [Framework repository](https://github.com/kraken-php/framework). License ------- [](#license) This library licensed under the MIT license, see more information in [Kraken Framework](https://github.com/kraken-php/framework) license section. ### Health Score 35 — LowBetter than 77% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity37 Limited adoption so far Community19 Small or concentrated contributor base Maturity53 Maturing project, gaining track record Bus Factor1 Top contributor holds 100% 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 ~34 days Recently: every ~52 days Total 8 Last Release 3340d ago PHP version history (2 changes)v0.3.0PHP >=5.5.9 v0.4.1PHP >=5.6.7 ### Community Maintainers ![](https://www.gravatar.com/avatar/edd40f7be77d3f9934f998dc0859d0562e42c715d61f5139feaf948a2fcb6050?d=identicon)[khelle](/maintainers/khelle) --- Top Contributors [![khelle](https://avatars.githubusercontent.com/u/5642657?v=4)](https://github.com/khelle "khelle (29 commits)") --- Tags eventevent-loopasyncasynchronousloopkrakenkraken-phplibeventlibev ### Embed Badge ![Health badge](/badges/kraken-php-loop/health.svg) ``` [![Health](https://phpackages.com/badges/kraken-php-loop/health.svg)](https://phpackages.com/packages/kraken-php-loop) ``` ### Alternatives [amphp/amp A non-blocking concurrency framework for PHP applications. 4.4k133.8M433](/packages/amphp-amp)[revolt/event-loop Rock-solid event loop for concurrent PHP applications. 92553.8M226](/packages/revolt-event-loop)[recoil/recoil Asynchronous coroutines for PHP 7. 79062.9k7](/packages/recoil-recoil)[recoil/react Integrate Recoil with ReactPHP. 32286.7k13](/packages/recoil-react)[async-interop/event-loop An event loop interface for interoperability. 1696.2k4](/packages/async-interop-event-loop)[recoil/api The public Recoil API, for library and application developers. 13301.2k6](/packages/recoil-api) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)