https://github.com/lstrojny/functional-php

Primitives for functional programming in PHP
https://github.com/lstrojny/functional-php

Last synced: 6 months ago
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Primitives for functional programming in PHP

• Host: GitHub
• URL: https://github.com/lstrojny/functional-php
• Owner: lstrojny
• License: mit
• Created: 2011-05-22T22:10:40.000Z (over 14 years ago)
• Default Branch: main
• Last Pushed: 2024-05-12T04:24:40.000Z (over 1 year ago)
• Last Synced: 2025-04-30T10:33:51.566Z (6 months ago)
• Language: PHP
• Homepage:
• Size: 1.05 MB
• Stars: 1,977
• Watchers: 76
• Forks: 209
• Open Issues: 23
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

          
# Functional PHP: Functional primitives for PHP

[![Test](https://github.com/lstrojny/functional-php/actions/workflows/test.yaml/badge.svg)](https://github.com/lstrojny/functional-php/actions/workflows/test.yaml)

*NOTE:* functional-php used to come with a C extension that implemented most of the functions natively. As the

performance differences weren’t that huge compared to the maintenance cost it has been removed.

A set of functional primitives for PHP, heavily inspired by [Scala’s traversable

collection](http://www.scala-lang.org/archives/downloads/distrib/files/nightly/docs/library/scala/collection/Traversable.html),

[Dojo’s array functions](http://dojotoolkit.org/reference-guide/quickstart/arrays.html) and

[Underscore.js](http://underscorejs.org/)

- Works with arrays and everything implementing interface `Traversable`

- Consistent interface: for functions taking collections and callbacks, first parameter is always the collection, then the callback.

  Callbacks are always passed `$value`, `$index`, `$collection`. Strict comparison is the default but can be changed

- Calls 5.3 closures as well as usual callbacks

- All functions reside in namespace `Functional` to not raise conflicts with any other extension or library

[![Functional Comic](http://imgs.xkcd.com/comics/functional.png)](http://xkcd.com/1270/)

## Installation

Run the following command in your project root:

    composer require lstrojny/functional-php

## Docs

[Read the docs](docs/functional-php.md)

## Contributing

1. Fork and `git clone` the project

2. Install dependencies via `composer install`

3. Run the tests via `composer run tests`

4. Write code and create a PR

## Mailing lists

- General help and development list: http://groups.google.com/group/functional-php

- Commit list: http://groups.google.com/group/functional-php-commits

## Thank you

- [Richard Quadling](https://github.com/RQuadling) and [Pierre Joye](https://github.com/pierrejoye) for Windows build

   help

- [David Soria Parra](https://github.com/dsp) for various ideas and the userland version of `Functional\flatten()`

- [Max Beutel](https://github.com/maxbeutel) for `Functional\unique()`, `Functional\invoke_first()`,

   `Functional\invoke_last()` and all the discussions

- [An Phan](https://github.com/phanan) for [many](https://github.com/lstrojny/functional-php/pulls?q=author%3Aphanan)

  great contributions