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souzajluiz/cnpj\_2\_0
=====================

Brazilian CNPJ validator and DV calculator for PHP

1.0(2mo ago)00MITPHPPHP >=8.1

Since May 7Pushed 2mo agoCompare

[ Source](https://github.com/souzajluiz/cnpj_2_0)[ Packagist](https://packagist.org/packages/souzajluiz/cnpj_2_0)[ RSS](/packages/souzajluiz-cnpj-2-0/feed)WikiDiscussions main Synced 3w ago

READMEChangelog (1)Dependencies (1)Versions (2)Used By (0)

PHP CNPJ Validator
==================

[](#php-cnpj-validator)

Brazilian CNPJ validator and verification digit (DV) calculator for PHP.

Installation
------------

[](#installation)

```
composer require souzajluiz/cnpj_2_0
```

Usage
-----

[](#usage)

```
use Souzajluiz\CNPJ\CNPJ;

$isValid = CNPJ::isValid('45.723.174/0001-10');

$dv = CNPJ::calculateDV('457231740001');
```

Running tests
-------------

[](#running-tests)

```
composer install
composer test
```

License
-------

[](#license)

MIT

###  Health Score

35

—

LowBetter than 77% of packages

Maintenance85

Actively maintained with recent releases

Popularity0

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity42

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.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

78d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/1831bdd1e0c843aafa10ac0de232072dc8bb3f545745b744f9b96b85721b4d40?d=identicon)[souzajluiz](/maintainers/souzajluiz)

---

Top Contributors

[![souzajluiz](https://avatars.githubusercontent.com/u/102811214?v=4)](https://github.com/souzajluiz "souzajluiz (3 commits)")

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/souzajluiz-cnpj-2-0/health.svg)

```
[![Health](https://phpackages.com/badges/souzajluiz-cnpj-2-0/health.svg)](https://phpackages.com/packages/souzajluiz-cnpj-2-0)
```

###  Alternatives

[hybridlogic/validation

A simple, extensible validation library for PHP with support for filtering and validating any input array along with generating client side validation code.

641.1k](/packages/hybridlogic-validation)

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