Functional PHP (Functional Programming in PHP)
With Membership
Suggested price

Functional PHP

The Art of Function Composition

About the Book

Functional programming. Sure. I've been using functions for years. What's the catch? Indeed you have been using functions a lot, just not in this way. When you think of functions as merely a collection of statements grouped together as an executable, you're thinking procedural programming. The truth is, functional programming is not a tool or a framework, but fundamentally an approach to software developmentSince PHP 5.3 you can take advantage of higher-order functions and closures to create code with an extremely high quality that is more robust, maintainable, extensible and bug free. 

In this book, I provide a practical approach to functional programming and show how it compares to other programming paradigms (procedural and object-oriented). This book is filled with examples that showcase functional concepts and techniques, plus using PHP in a ways you've probably never though it could.

This book is for the professional PHP developer. There's no crazy academic nonsense or mathematical equations, just pure and practical hardcore use of functions with the most widespread web language today.  

About the Author

Luis Atencio
Luis Atencio

Staff Software Engineer @ Citrix and author of Functional Programming in JavaScript (Manning 2016) [] and RxJS in Action (Manning 2016)

Table of Contents

  • Thinking Functionally in PHP?
    • Introduction
    • Which PHP version to use?
    • Hello FP
    • Declarative coding
    • Designing for immutability and statelessness
    • Pure functions fix side effects
    • Referential Transparency
    • A look into functional decomposition
    • To sum up, what is functional programming?
  • Higher-order PHP
    • PHP’s first-class, higher-order functions
    • Using containers improve your APIs
    • Closures
    • Functional vs Object-Oriented Summary Table
  • Point-free Data Flows and currying
  • Error handling with Monads
  • React: The Promise Monad
  • Reactive Programming in PHP
  • Functional Domain Modeling
  • Object-oriented in the large, functional in the small

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.

You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!

So, there's no reason not to click the Add to Cart button, is there?

See full terms...

80% Royalties. Earn $16 on a $20 book.

We pay 80% royalties. That's not a typo: you earn $16 on a $20 sale. If we sell 5000 non-refunded copies of your book or course for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earnedover $13 millionwriting, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub