https://github.com/phrenotype/lambda

Converts functions to lambdas
https://github.com/phrenotype/lambda

curry currying function-application functional-programming lambda lambda-functions partial-application

Last synced: 14 days ago
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Converts functions to lambdas

• Host: GitHub
• URL: https://github.com/phrenotype/lambda
• Owner: phrenotype
• License: mit
• Created: 2021-11-01T18:35:19.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2023-03-17T14:44:12.000Z (almost 3 years ago)
• Last Synced: 2025-08-11T01:29:38.618Z (5 months ago)
• Topics: curry, currying, function-application, functional-programming, lambda, lambda-functions, partial-application
• Language: PHP
• Homepage:
• Size: 10.7 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Lambda

![github stars](https://img.shields.io/github/stars/phrenotype/lambda?style=social)

![license](https://img.shields.io/github/license/phrenotype/lambda)

![contributors](https://img.shields.io/github/contributors/phrenotype/lambda)

![code size](https://img.shields.io/github/languages/code-size/phrenotype/lambda)

This is a library for converting both named and annonymous php functions into lambda expressions.  This the allows them to be curried and partially applied.

## Install  

`composer require phrenotype/lambda`  

## Examples

#### With all parameters required  

```php

$add = lambda(function($a, $b, $c){

	return $a + $b + $c;

});

echo $add(4,5,2);

echo $add(4,5)(2);

echo $add(4)(5,2);

echo $add(4)(5)(2);

```

#### With optional parameters  

This is a little bit tricky.  

```php

$add = lambda(function($a, $b, $c=2){

	return $a + $b + $c;

});

```

The key thing to remember is that once the numbers of arguments applied ***exactly matches*** the required number of arguments, It will return a result, not a lambda. So, in applying arguments, do not apply them curry style when dealing with optional parameters. Use partial application instead.

```php

echo $add(4,5,2); // Ok

echo $add(4)(5,2) // Ok

echo $add(4,5)(2); // Error

echo $add(4)(5)(2); //Error

```

## Contact  

**Email** : paul.contrib@gmail.com