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# amp
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[![Build Status ](https://img.shields.io/travis/amphp/amp/master.svg?style=flat-square )](https://travis-ci.org/amphp/amp)
[![CoverageStatus ](https://img.shields.io/coveralls/amphp/amp/master.svg?style=flat-square )](https://coveralls.io/github/amphp/amp?branch=master)
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![Unstable v2 ](https://img.shields.io/badge/unstable-v2-green.svg?style=flat-square )
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![License ](https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square )
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`amphp/amp` is a non-blocking concurrency framework for PHP. It provides an event loop, promises and streams as a base for asynchronous programming.
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Promises in combination with generators are used to build coroutines, which allow writing asynchronous code just like synchronous code, without any callbacks.
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## Installation
This package can be installed as a [Composer ](https://getcomposer.org/ ) dependency.
```bash
composer require amphp/amp ^2@dev
```
## Requirements
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- PHP 7.0+
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##### Optional Extension Backends
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Extensions are only needed if your app necessitates a high numbers of concurrent socket connections.
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- [ev ](https://pecl.php.net/package/ev )
- [libevent ](https://pecl.php.net/package/libevent )
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- [php-uv ](https://github.com/bwoebi/php-uv ) (experimental fork)
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## Documentation
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Documentation is bundled within this repository in the [`./docs` ](./docs ) directory.
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## Versioning
`amphp/amp` follows the [semver ](http://semver.org/ ) semantic versioning specification like all other `amphp` packages.
## Compatible Packages
Compatible packages should use the [`amphp` ](https://github.com/search?utf8=%E2%9C%93&q=topic%3Aamphp ) topic on GitHub.
## Security
If you discover any security related issues, please email [`bobwei9@hotmail.com` ](mailto:bobwei9@hotmail.com ) or [`me@kelunik.com` ](mailto:me@kelunik.com ) instead of using the issue tracker.
## License
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The MIT License (MIT). Please see [`LICENSE` ](./LICENSE ) for more information.