Functional PHP: Functional primitives for PHP

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, Dojo’s array functions and Underscore.js

Works with arrays and everything implementing interface Traversable
Consistent interface: for functions taking collections and callbacks, first parameter is always the collection, than 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

Installation with composer

Put the require statement for functional-php in your composer.json file and run php composer.phar install:

{
    "require": {
        "lstrojny/functional-php": "~1.2"
    }
}

Docs

Read the docs

Installing dependencies

To install all dependencies type composer install

Running the test suite

To run the test suite type composer run tests

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 and Pierre Joye for Windows build help
David Soria Parra for various ideas and the userland version of Functional\flatten()
Max Beutel for Functional\unique(), Functional\invoke_first(), Functional\invoke_last() and all the discussions
The people behind Travis CI for continuous integration