Amp alternatives and similar libraries
Based on the "Event" category.
Alternatively, view Amp alternatives based on common mentions on social networks and blogs.
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Workerman
An asynchronous event driven PHP socket framework. Supports HTTP, Websocket, SSL and other custom protocols. -
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Cake Event
[READ-ONLY] The event dispatcher library for CakePHP. This repo is a split of the main code that can be found in https://github.com/cakephp/cakephp -
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InfluxDB - Power Real-Time Data Analytics at Scale
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README
Amp is a non-blocking concurrency framework for PHP. It provides an event loop, promises and streams as a base for asynchronous programming.
Promises in combination with generators are used to build coroutines, which allow writing asynchronous code just like synchronous code, without any callbacks.
Motivation
Traditionally, PHP has a synchronous execution flow, doing one thing at a time. If you query a database, you send the query and wait for the response from the database server in a blocking manner. Once you have the response, you can start doing the next thing.
Instead of sitting there and doing nothing while waiting, we could already send the next database query, or do an HTTP call to an API.
Making use of the time we usually spend on waiting for I/O can speed up the total execution time. The following diagram shows the execution flow with dependencies between the different tasks, once executed sequentially and once concurrently.
[](docs/images/sequential-vs-concurrent.png)
Amp allows such concurrent I/O operations while keeping the cognitive load low by avoiding callbacks.
Instead, the results of asynchronous operations can be awaited using yield resulting in code which is structured like traditional blocking I/O code while the actual execution flow is handled by Amp.
Installation
This package can be installed as a Composer dependency.
composer require amphp/amp
This installs the basic building blocks for asynchronous applications in PHP. We offer a lot of repositories building on top of this repository, e.g.
amphp/byte-streamproviding a stream abstractionamphp/socketproviding a socket layer for UDP and TCP including TLSamphp/parallelproviding parallel processing to utilize multiple CPU cores and offload blocking operationsamphp/http-clientproviding an HTTP/1.1 and HTTP/2 clientamphp/http-serverproviding an HTTP/1.1 and HTTP/2 application serveramphp/mysqlandamphp/postgresfor non-blocking database access- and many more packages
Documentation
Documentation can be found on amphp.org as well as in the [./docs](./docs) directory.
Each package has its own ./docs directory.
Requirements
This package requires PHP 7.0 or later. Many of the other packages raised their requirement to PHP 7.1. No extensions required!
Optional Extensions
Extensions are only needed if your app necessitates a high number of concurrent socket connections, usually this limit is configured up to 1024 file descriptors.
Examples
Examples can be found in the [./examples](./examples) directory of this repository as well as in the ./examples directory of our other libraries.
Versioning
amphp/amp follows the semver semantic versioning specification like all other amphp packages.
2.x
Supported. We don't have plans to release v3, yet.
1.x
No longer supported. We stopped providing bug fixes 2017-12-31 and stopped providing security fixes 2018-12-31.
Compatible Packages
Compatible packages should use the amphp topic on GitHub.
Security
If you discover any security related issues, please email [email protected] instead of using the issue tracker.
License
The MIT License (MIT). Please see [LICENSE](./LICENSE) for more information.
*Note that all licence references and agreements mentioned in the Amp README section above
are relevant to that project's source code only.