This library makes it easier to use functional style programming in PHP

As we move our codebase forward, it is no longer possible for us to support older versions of PHP. With release version 1.0 and onward, we will stop supporting PHP 5.3 and PHP 5.4.

Install the package via composer by adding this section to the composer.json file:

"require": {
    "revinate/sequence": "~0.3"
},

This is a tiny script to get a feeling of how Sequence works.

<?php
require_once __DIR__.'/vendor/autoload.php';

use Revinate\Sequence\Sequence;

$dataSet = array(1, 2, 3, 4, 5);
$seq = Sequence::make($dataSet);

// At this point you have a sequence and you can do bunch of cool sequence stuff with it

$even = $seq->filter(function($n) { return $n%2 == 0; });  // nothing is evaluated here because of lazy loading
foreach($even as $num) {
    echo "$num\n";
}


$twice = $seq->map(function($n) { return $n * 2; });
foreach($twice as $num) {
    echo "$num\n";
}

and the output of this program will be:

2
4
2
4
6
8
10

This is just a tiny bit of all the things that can be accomplished with Sequence. For a more detailed documentation, see Wiki

First clone the repo and install the dependencies

git clone https://github.com/revinate/sequence.git
composer install

and then run the tests:

phpunit

That's all you need to start working on Sequence. Please, include tests in your pull requests.