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phrenotype/lambda
=================

Converts php functions to lambdas

v1.5.0(3y ago)18MITPHPPHP >=7.0.0

Since Jan 1Pushed 3y ago1 watchersCompare

[ Source](https://github.com/phrenotype/lambda)[ Packagist](https://packagist.org/packages/phrenotype/lambda)[ RSS](/packages/phrenotype-lambda/feed)WikiDiscussions main Synced 1mo ago

READMEChangelog (2)DependenciesVersions (3)Used By (0)

Lambda
======

[](#lambda)

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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
-------

[](#install)

`composer require phrenotype/lambda`

Examples
--------

[](#examples)

#### With all parameters required

[](#with-all-parameters-required)

```
$add = lambda(function($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

[](#with-optional-parameters)

This is a little bit tricky.

```
$add = lambda(function($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.

```
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
-------

[](#contact)

**Email** :

###  Health Score

21

—

LowBetter than 18% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity6

Limited adoption so far

Community4

Small or concentrated contributor base

Maturity46

Maturing project, gaining track record

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~439 days

Total

2

Last Release

1158d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/adf1dd383d12e22f502f37f13566c2b569e4c8aecf151af7e34a3ce74b0d86b5?d=identicon)[paulrobert](/maintainers/paulrobert)

---

Tags

currycurryingfunction-applicationfunctional-programminglambdalambda-functionspartial-applicationphplambdacurrycurrying

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![Health badge](/badges/phrenotype-lambda/health.svg)

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