lstrojny/functional-php

Health v2 · maintenance only

Adoption not part of the score

1984 stars · 202 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A PHP library providing functional programming primitives inspired by Scala's collections, Dojo's array functions, and Underscore.js. It offers a consistent set of functions operating on arrays and Traversable objects, all namespaced under Functional.

Use cases

• apply map, filter, and reduce operations on PHP collections
• work with arrays and Traversable objects using a consistent functional API
• replace verbose foreach loops with functional primitives
• flatten, unique, and invoke functions on collections
• write more declarative PHP code with callbacks

When to choose

• you want Underscore.js-style functional utilities in PHP
• you need consistent collection manipulation functions for arrays and Traversable objects
• you prefer functional style over imperative loops in PHP codebases

When to avoid

• you need high-performance native C implementations (the C extension was removed)
• your project avoids extra dependencies and PHP's built-in array functions suffice
• you need immutable persistent data structures rather than function primitives

Facets

library · maturity stable

developer-tools developer-tools programming-languages php functional-programming collections underscore-inspired traversable

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