phel-lang/phel-lang

Phel is a functional programming language that transpiles to PHP

v0.18.1 2025-06-18 05:02 UTC

Requires

• php: >=8.2
• gacela-project/gacela: ^1.9
• phpunit/php-timer: ^6.0
• symfony/console: ^7.0

Requires (Dev)

• ext-readline: *
• ergebnis/composer-normalize: ^2.45
• friendsofphp/php-cs-fixer: ^3.65
• phpbench/phpbench: ^1.3
• phpstan/phpstan: ^2.0
• phpunit/phpunit: ^10.5
• psalm/plugin-phpunit: ^0.19
• rector/rector: ^2.0
• symfony/var-dumper: ^7.2
• vimeo/psalm: ^5.26

MIT

• Jens Haase
• Jose M. Valera Reales

• language
• functional
• lisp
• phel

README

Phel is a functional programming language that transpiles to PHP.

It is a dialect of Lisp inspired by Clojure and Janet, designed for building robust applications in the PHP ecosystem.

Example

# Define a namespace
(ns my\example)

# Define a variable with name "my-name" and value "world"
(def my-name "world")

# Define a function with name "print-name" and one argument "your-name"
(defn print-name [your-name]
  (print "hello" your-name))

# Call the function
(print-name my-name)

Documentation

• Website
  • Features, documentation, exercises and blog
• Installation
  • Quick start with scaffolding or manual installation
• Packagist
  • The PHP Package Repository
• Internals
  • Additional documentation about the compiler internals

Community

Feel free to ask questions and join discussions on the Phel Gitter channel.

Build PHAR

Run the following command to create a standalone PHAR executable:

./build/phar.sh

The generated build/out/phel.phar can then be executed directly.

Contribute

Please refer to CONTRIBUTING.md for information on how to contribute to Phel.