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cancio-labs/cpf-validation-function
===================================

A function to validate a CPF (Brazilian ID)

1.0.0(2y ago)01202GPL-3.0-or-laterPHPPHP >=7.4

Since Jun 30Pushed 2y ago1 watchersCompare

[ Source](https://github.com/canciolabs/cpf-validation-function)[ Packagist](https://packagist.org/packages/cancio-labs/cpf-validation-function)[ Docs](https://github.com/canciolabs/cpf-validation-function)[ RSS](/packages/cancio-labs-cpf-validation-function/feed)WikiDiscussions main Synced today

READMEChangelog (1)Dependencies (1)Versions (3)Used By (2)

CPF functions
=============

[](#cpf-functions)

This tiny package contains some functions to validate a CPF (Brazilian ID)

Requirements
------------

[](#requirements)

PHP 7.4 or greater is required, nothing else.

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

[](#installation)

```
composer require cancio-labs/cpf-validation-function

```

Functions
---------

[](#functions)

1. is\_valid\_cpf
2. assert\_cpf

How to use it
-------------

[](#how-to-use-it)

### is\_valid\_cpf(string $cpf): bool

[](#is_valid_cpfstring-cpf-bool)

Returns true if the CPF is valid, false otherwise.

```
use function CancioLabs\Functions\Cpf\is_valid_cpf;

// Passing formatted CPFs
is_valid_cpf('170.317.330-90') // returns true
is_valid_cpf('170.317.330-00') // returns false

// Passing raw CPFs
is_valid_cpf('17031733090') // returns true
is_valid_cpf('17031733000') // returns false

```

### assert\_cpf(string $cpf): void

[](#assert_cpfstring-cpf-void)

Validates the CPF and throw an InvalidArgumentException if the CPF is not valid.

```
use function CancioLabs\Functions\Cpf\assert_cpf;

// These 2 example will execute normally
assert_cpf('170.317.330-90');
assert_cpf('17031733090');

// These 3 examples throw InvalidArgumentException
assert_cpf('')
assert_cpf('foo')
assert_cpf('17031733000')

```

Running Tests
-------------

[](#running-tests)

- From the project root, run: `vendor/bin/phpunit .`

###  Health Score

22

—

LowBetter than 21% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity10

Limited adoption so far

Community11

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

732d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/65afdceff66eba436390f0041cd197dfef88b72f96a719e11477c315eb797ebb?d=identicon)[nilosoares](/maintainers/nilosoares)

---

Top Contributors

[![nilosoares](https://avatars.githubusercontent.com/u/7283619?v=4)](https://github.com/nilosoares "nilosoares (1 commits)")

---

Tags

cpfcpf-validadorfunctionphpvalidationvalidationcpfbrasil

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/cancio-labs-cpf-validation-function/health.svg)

```
[![Health](https://phpackages.com/badges/cancio-labs-cpf-validation-function/health.svg)](https://phpackages.com/packages/cancio-labs-cpf-validation-function)
```

###  Alternatives

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Classe em PHP para validação de CPF e CNPJ.

2195.0k](/packages/bissolli-validador-cpf-cnpj)[yiibr/yii2-br-validator

Provide validations and features for brazilian localization

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