Gain insights into functional programming in PHP. Learn about pure functions, immutable data, and monads. Explore error handling and apply principles through practical projects.

fp15aug.tar.gz

php7.4

ch8-phonebook

php8.1

purescript

python-pytoolz

chapter5-challenge1

AMQP

eris-testing-lesson

AMQP-Challenge

eris-testing-challenge

Functional programming is a paradigm that emphasizes expressing program logic as compositions of pure functions. PHP is a good fit for functional programming as functions are first-class citizens in its userland.
 
This course introduces you to the core concepts of functional programming, like pure functions, immutable data structures, and referential transparency. From there, you'll explore ways to handle errors with default values and callbacks while also exploring sum types such as Either or Maybe. Next, you'll look at functors before diving deep into monads, including IO, State, Reader, and List.
 
By the end of this course, you'll have a keen understanding of how to apply these principles in practice through a worked-out project. Not only will you know another way to program, but you’ll also feel confident enough to apply these ideas to your projects in PHP.

Learn Functional Programming in PHP

## Background

A lot has happened since the advent of modern computing in the previous century. Software today is as metastable as it has ever been, and Input/Output operations—database read-write actions, API calls and so on—are, sans optimization, really slow. The norm today is to mitigate slow I/O with overly-compensative techniques like parallelization, especially in the creation of large, dynamic applications capable of processing complex instructions in large quantities. Distributed systems are at the center of the burst in concurrency and have become ubiquitous out of necessity in the computing world today. Such systems are therefore capable of parallelly executing typically arduous I/O computations.


# Background

A lot has happened since the advent of modern computing in the previous century. Software today is as metastable as it has ever been, and Input/Output operations—database read-write actions, API calls and so on—are, sans optimization, really slow. The norm today is to mitigate slow I/O with overly-compensative techniques like parallelization, especially in the creation of large, dynamic applications capable of processing complex instructions in large quantities. Distributed systems are at the center of the burst in concurrency and have become ubiquitous out of necessity in the computing world today. Such systems are therefore capable of parallelly executing typically arduous I/O computations.


Learn about the background of multithreading and its roots in PHP.

Getting Started

An Introduction to Functional Programming in PHP

Core Concepts: Functional Programming in PHP

Composition and Helper Functions

Error Handling in Functional Programming

Functors in PHP

Parallelization of Tasks in PHP

Recursion, Pattern Matching, and Property Testing

Phonebook Application — A Simple Project

Conclusion

Appendix

Threading in PHP

Background