chemem/bingo-functional

A simple functional programming library.

v2.5.0 2026-07-19 18:01 UTC

Requires

• php: ^7.2 || ^8

Requires (Dev)

• ergebnis/composer-normalize: ^2
• friendsofphp/php-cs-fixer: ^3
• giorgiosironi/eris: ^0
• phpunit/phpunit: ^8 || ^9

Suggests

• ext-apcu: In-memory key-value PHP userland store
• ext-eio: An interface to the libeio library
• ext-mbstring: PHP extension for accurately determining byte-length of strings
• ext-readline: An interface to the GNU readline library
• chemem/bingo-functional-repl: A simple REPL for the bingo-functional library

Apache-2.0

• Lochemem Bruno Michael

• collections
• helpers
• filter
• map
• functional
• unzip
• zip
• curry
• memoize
• composition
• partial
• reduce
• maybe
• Pattern Matching
• compose
• fp
• functional programming
• tuples
• immutability
• functor
• either
• partial application
• monads
• higher-order functions
• fold
• lens
• IO monad
• Reader monad
• Writer monad
• State monad
• referential transparency
• bingo
• Applicative
• fantasy land
• immutable lists
• union types
• functors
• applicatives
• transducers
• input-output
• filterM
• foldM
• lenses
• monad laws
• applicative laws
• persistent data structures
• pure functions
• either monad
• maybe monad
• applicative functor
• identity functor
• over
• transduce

Published on Packagist.org on 2026-07-19 18:04 UTC

README

bingo-functional

A simple functional programming library for PHP.

Requirement(s)

• PHP 7 or higher

Rationale

PHP, a language not commonly associated with Functional Programming, does support the paradigm - to an extent. The language's Functional Programming affability though substantial is not the same as that of Haskell, OCaml, or F# - purely Functional languages. bingo-functional is an attempt at enhancing the usability of FP techniques - those that warrant the use of helper functions, applicatives, monads, pattern matching, and immutable lists.

Documentation

Please check out the documentation for more knowledge on how to use this library.

Also, a changelog exists and can be used to track changes made to the project.

Dealing with problems

Endeavor to create an issue on GitHub when the need arises or send an email to [e-mail]

Functional Programming in PHP

I collaborated with Apress to release a new edition of Functional Programming in PHP, which you, a prospective reader, can find on the Apress bookstore. Featured prominently throughout the book are artifacts in this library whose origins (where necessary) and use cases are explored. I recommend you consider getting yourself a copy so you can further acquaint yourself with the paradigm and set yourself on a path to writing performant, composable code.

Related Projects

• bingo-functional-js A JavaScript port of this library

• bingo-functional-repl A REPL for this library