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plaf/contract
=============

Simple contracts library for PHP

16PHP

Since Aug 12Pushed 12y ago1 watchersCompare

[ Source](https://github.com/plaf/contract)[ Packagist](https://packagist.org/packages/plaf/contract)[ RSS](/packages/plaf-contract/feed)WikiDiscussions master Synced 2w ago

READMEChangelogDependenciesVersions (1)Used By (0)

Plaf\\Contract
==============

[](#plafcontract)

Simple contracts for PHP
========================

[](#simple-contracts-for-php)

A part of Plaf - PHP library: Additional functionality

Functionality for ensuring contract compliance in terms of value type / range constraints. It should not be treated as validation, but specification of usage boundaries for programmers. Correctly covered code will behave predictable: it will work as designed by it's author or not work at all.

Usage example:
--------------

[](#usage-example)

```
use Plaf\Contract\Contract;

class EntitySaver {

    public function saveEntity($entity) {
        Contract::ensureNotNull($entity);
    }

}

use Plaf\Contract\Contract;

class Order {

    const STATE_NEW;
    const STATE_PREPARING;
    const STATE_SHIPPED;
    const STATE_COMPLETED;

    private $state;

    public function setState($state) {
        Contract::ensureInArray($state, array(
            self::STATE_NEW,
            self::STATE_PREPARING,
            self::STATE_SHIPPED,
            self::STATE_COMPLETED
        ));
    }

}

```

###  Health Score

20

—

LowBetter than 13% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity6

Limited adoption so far

Community7

Small or concentrated contributor base

Maturity41

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

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.

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/172711?v=4)[Valeriy](/maintainers/tverdohleb)[@tverdohleb](https://github.com/tverdohleb)

---

Top Contributors

[![tverdohleb](https://avatars.githubusercontent.com/u/172711?v=4)](https://github.com/tverdohleb "tverdohleb (2 commits)")

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![Health badge](/badges/plaf-contract/health.svg)

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```

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