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97 lines
3.7 KiB
Markdown
97 lines
3.7 KiB
Markdown
<a href="https://amphp.org/">
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<img src="https://github.com/amphp/logo/blob/master/repos/amp-logo-with-margin.png?raw=true" width="250" align="right" alt="Amp Logo">
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</a>
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<a href="https://amphp.org/"><img alt="Amp" src="https://github.com/amphp/logo/blob/master/repos/amp-text.png?raw=true" width="100" valign="middle"></a> <a href="https://travis-ci.org/amphp/amp"><img src="https://img.shields.io/travis/amphp/amp/master.svg?style=flat-square" valign="middle"></a> <a href="https://coveralls.io/github/amphp/amp?branch=master"><img src="https://img.shields.io/coveralls/amphp/amp/master.svg?style=flat-square" valign="middle"></a> <a href="blob/master/LICENSE"><img src="https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square" valign="middle"></a>
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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
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This package can be installed as a [Composer](https://getcomposer.org/) dependency.
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```bash
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composer require amphp/amp
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```
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## Documentation
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Documentation can be found on [amphp.org](https://amphp.org/) as well as in the [`./docs`](./docs) directory.
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## 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)
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- [event](https://pecl.php.net/package/event)
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- [php-uv](https://github.com/bwoebi/php-uv) (experimental fork)
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## Examples
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This simple example uses our [Artax](https://amphp.org/artax/) HTTP client to fetch multiple HTTP resources concurrently.
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```php
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<?php
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use Amp\Artax\Response;
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use Amp\Loop;
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require __DIR__ . '/../vendor/autoload.php';
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Loop::run(function () {
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$uris = [
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"https://google.com/",
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"https://github.com/",
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"https://stackoverflow.com/",
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];
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$client = new Amp\Artax\DefaultClient;
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$client->setOption(Amp\Artax\Client::OP_DISCARD_BODY, true);
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try {
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foreach ($uris as $uri) {
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$promises[$uri] = $client->request($uri);
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}
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$responses = yield $promises;
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foreach ($responses as $uri => $response) {
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print $uri . " - " . $response->getStatus() . $response->getReason() . PHP_EOL;
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}
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} catch (Amp\Artax\HttpException $error) {
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// If something goes wrong Amp will throw the exception where the promise was yielded.
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// The Client::request() method itself will never throw directly, but returns a promise.
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print $error->getMessage() . PHP_EOL;
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}
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});
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```
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Further examples can be found in the [`./examples`](./examples) directory of this repository as well as in the `./examples` directory of [our other libraries](https://github.com/amphp?utf8=%E2%9C%93&q=&type=public&language=php)
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## Versioning
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`amphp/amp` follows the [semver](http://semver.org/) semantic versioning specification like all other `amphp` packages.
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| Version | Bug Fixes Until | Security Fixes Until |
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| ------- | --------------- | -------------------- |
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| 2.x | TBA | TBA |
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| 1.x | 2017-12-31 | 2018-12-31 |
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## Compatible Packages
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Compatible packages should use the [`amphp`](https://github.com/search?utf8=%E2%9C%93&q=topic%3Aamphp) topic on GitHub.
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## Security
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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.
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## License
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The MIT License (MIT). Please see [`LICENSE`](./LICENSE) for more information.
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