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Vendor tarsana
Package functional
Short Description functional programming library for PHP
License MIT

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Informations about the package functional

Tarsana Functional

Functional programming library for PHP.

Introduction
Get Started
Features
Functions
Classes
Tests
Contributing
Changes Log

Introduction

What is that ?

This is a Functional Programming library for PHP.

Why Functional Programming ? Isn't Object Oriented good enough ?

Well, it dependes on your needs. FP and OOP are very different. Personally I like FP because the code is easier to write, test and maintain; even if it runs generally slower than the equivalent procedural or OOP code.

Just Googled and found many FP libraries for PHP. Why are you writing a new one ?

This library is inspired by Ramda which is a FP library for Javascript. Ramda was created after underscore and lodash and it has a better Functional API then others. This talk explains how. So I wanted a library with the same philisophy as Ramda supporting old versions of PHP (from version 5.4).

Get Started

You can install this library using composer

Then you can use it by importing the Tarsana\Functional namespace.

Features

The main features of this library are:

Ramda like functional API with curry() and __().
100+ Functions covered with 140+ Tests Cases containing 390+ assertions.
All functions are curried out of the box.
No dependencies !
Supporting PHP versions since 5.4
Flexible Stream class.

Functions

Functions are grouped into modules

Classes

Why classes ? Isn't that a FUNCTIONAL library ?

We can use classes to define Types and Containers as long as they are immutable and have pure methods. Defining a container as a class gives us a fluent API and elegant code.

The main class defined in this library is Stream. It's an immutable data container with lazy evaluation and type errors detection. It will allow you to write code like the following:

Then if the file temp.txt contains:

The code above will output:

Click here to learn more about Stream

There is also the Tarsana\Functional\Error class which is just extending the default Exception class and providing a static method Error::of('msg') to create new errors without using the new operator.

Tests

All tests are under the tests directory. they can be run using phpunit.

Contributing

Please consider reading the Contribution Guide, it will help you to understand how is the project structured and why I am including a build.php and package.json files !

Changes Log

Version 2.2.2

Bug fixed on chunks.

Version 2.2.1

Bug fixed on remove.

Version 2.2.0

compose function added as requested here.
Contribution Guide added.
109 Functions, 152 Tests with 421 assertions.

Version 2.1.0

Improving efficiency of the library.
108 Functions, 151 Tests with 420 assertions.

Version 2.0.0

cypresslab/php-curry dependency removed.
New modules: Object and Common.
108 Functions, 143 Tests with 393 assertions.
New build script to generate docs and some unit tests.
Stream class rewritten to support custom operations. get() is now called result() to avoid conflict with get().

Version 1.1.0

Fix remove bug: made it curried.

Version 1.0.0

5 modules (Functions, Operators, String, List, Math) containing 64 functions.
Stream: a lazy data container

All versions of functional with dependencies

PHP Build Version

Package Version

Version 2.2.2 Release 21. Jul 2018
create-project require 0 people chose require and
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