Toolkit to handle the main operations with Brazilian-related data for PHP programming language:

• CPF (personal ID) (demo)
• CNPJ (employer ID) (demo)

PHP Support

Passing ✔	Passing ✔	Passing ✔	Passing ✔

Installation

$ composer require lacus/br-utils

Import

<?php
// Using the main BrUtils class
use Lacus\BrUtils\BrUtils;

// Or using individual utility classes
use Lacus\BrUtils\CpfUtils;
use Lacus\BrUtils\CnpjUtils;

// Or using function-based approach
use function Lacus\BrUtils\Cpf\cpf_fmt;
use function Lacus\BrUtils\Cpf\cpf_gen;
use function Lacus\BrUtils\Cpf\cpf_val;
use function Lacus\BrUtils\Cnpj\cnpj_fmt;
use function Lacus\BrUtils\Cnpj\cnpj_gen;
use function Lacus\BrUtils\Cnpj\cnpj_val;

Usage

Unified Interface with BrUtils

The BrUtils class provides a unified interface for all Brazilian ID operations:

$brUtils = new BrUtils();

// CPF operations
$cpf = '11144477735';
echo $brUtils->cpf->format($cpf);       // returns '111.444.777-35'
echo $brUtils->cpf->isValid($cpf);      // returns true
echo $brUtils->cpf->generate();         // returns '12345678901'

// CNPJ operations
$cnpj = '03603568000195';
echo $brUtils->cnpj->format($cnpj);     // returns '03.603.568/0001-95'
echo $brUtils->cnpj->isValid($cnpj);    // returns true
echo $brUtils->cnpj->generate();        // returns '65453043000178'

With Configuration Options

You can configure both CPF and CNPJ utilities with custom options:

$brUtils = new BrUtils(
    cpf: [
        'formatter' => [
            'hidden' => true,
            'hiddenKey' => '#',
            'hiddenStart' => 3,
            'hiddenEnd' => 9
        ],
        'generator' => [
            'format' => true
        ]
    ],
    cnpj: [
        'formatter' => [
            'hidden' => true,
            'hiddenKey' => '#',
            'hiddenStart' => 5,
            'hiddenEnd' => 13
        ],
        'generator' => [
            'format' => true
        ]
    ]
);

$cpf = '11144477735';
$cnpj = '03603568000195';

echo $brUtils->cpf->format($cpf);       // returns '111.###.###-##'
echo $brUtils->cnpj->format($cnpj);     // returns '03.603.###/####-##'
echo $brUtils->cpf->generate();         // returns '123.456.789-01'
echo $brUtils->cnpj->generate();        // returns '73.008.535/0005-06'

Individual Utility Classes

You can also use the individual utility classes directly:

// CPF utilities
$cpfUtils = new CpfUtils();
$cpf = '11144477735';

echo $cpfUtils->format($cpf);           // returns '111.444.777-35'
echo $cpfUtils->isValid($cpf);          // returns true
echo $cpfUtils->generate();             // returns '12345678901'

// CNPJ utilities
$cnpjUtils = new CnpjUtils();
$cnpj = '03603568000195';

echo $cnpjUtils->format($cnpj);         // returns '03.603.568/0001-95'
echo $cnpjUtils->isValid($cnpj);        // returns true
echo $cnpjUtils->generate();            // returns '65453043000178'

Functional Programming

The package also provides standalone functions for each operation:

$cpf = '11144477735';
$cnpj = '03603568000195';

// CPF functions
echo cpf_fmt($cpf);                     // returns '111.444.777-35'
echo cpf_val($cpf);                     // returns true
echo cpf_gen();                         // returns '12345678901'

// CNPJ functions
echo cnpj_fmt($cnpj);                   // returns '03.603.568/0001-95'
echo cnpj_val($cnpj);                   // returns true
echo cnpj_gen();                        // returns '65453043000178'

API Reference

CPF Operations

Formatting (cpf_fmt / CpfUtils::format)

Formats a CPF string with customizable delimiters and masking options.

cpf_fmt(
    string $cpfString,
    ?bool $escape = null,
    ?bool $hidden = null,
    ?string $hiddenKey = null,
    ?int $hiddenStart = null,
    ?int $hiddenEnd = null,
    ?string $dotKey = null,
    ?string $dashKey = null,
    ?Closure $onFail = null,
): string

Parameters:

Parameter	Type	Default	Description
escape	?bool	false	Whether to HTML escape the result
hidden	?bool	false	Whether to hide digits with a mask
hiddenKey	?string	'*'	Character to replace hidden digits
hiddenStart	?int	3	Starting index for hidden range (0-10)
hiddenEnd	?int	9	Ending index for hidden range (0-10)
dotKey	?string	'.'	String to replace dot characters
dashKey	?string	'-'	String to replace dash character
onFail	?callable	fn($v) => $v	Fallback function for invalid input

Examples:

$cpf = '11144477735';

// Basic formatting
echo cpf_fmt($cpf);                     // '111.444.777-35'

// With hidden digits
echo cpf_fmt($cpf, hidden: true);       // '111.***.***-**'

// Custom delimiters
echo cpf_fmt($cpf, dotKey: '', dashKey: '_');  // '111444777_35'

// Custom hidden range
echo cpf_fmt($cpf, hidden: true, hiddenStart: 0, hiddenEnd: 6, hiddenKey: '#');  // '###.###.777-35'

Generation (cpf_gen / CpfUtils::generate)

Generates valid CPF numbers with optional formatting and prefix completion.

cpf_gen(
    ?bool $format = null,
    ?string $prefix = null,
): string

Parameters:

Parameter	Type	Default	Description
format	?bool	false	Whether to format the output
prefix	?string	''	Prefix to complete with valid digits (1-9 digits)

Examples:

// Generate random CPF
echo cpf_gen();                         // '12345678901'

// Generate formatted CPF
echo cpf_gen(format: true);             // '123.456.789-01'

// Complete a prefix
echo cpf_gen(prefix: '123456789');      // '12345678901'

// Complete and format
echo cpf_gen(prefix: '123456789', format: true);  // '123.456.789-01'

Validation (cpf_val / CpfUtils::isValid)

Validates CPF numbers using the official algorithm.

cpf_val(string $cpfString): bool

Examples:

// Valid CPF
echo cpf_val('11144477735');            // true
echo cpf_val('111.444.777-35');        // true

// Invalid CPF
echo cpf_val('11144477736');            // false

CNPJ Operations

Formatting (cnpj_fmt / CnpjUtils::format)

Formats a CNPJ string with customizable delimiters and masking options.

cnpj_fmt(
    string $cnpjString,
    ?bool $escape = null,
    ?bool $hidden = null,
    ?string $hiddenKey = null,
    ?int $hiddenStart = null,
    ?int $hiddenEnd = null,
    ?string $dotKey = null,
    ?string $slashKey = null,
    ?string $dashKey = null,
    ?Closure $onFail = null,
): string

Parameters:

Parameter	Type	Default	Description
escape	?bool	false	Whether to HTML escape the result
hidden	?bool	false	Whether to hide digits with a mask
hiddenKey	?string	'*'	Character to replace hidden digits
hiddenStart	?int	5	Starting index for hidden range (0-13)
hiddenEnd	?int	13	Ending index for hidden range (0-13)
dotKey	?string	'.'	String to replace dot characters
slashKey	?string	'/'	String to replace slash character
dashKey	?string	'-'	String to replace dash character
onFail	?callable	fn($v) => $v	Fallback function for invalid input

Examples:

$cnpj = '03603568000195';

// Basic formatting
echo cnpj_fmt($cnpj);                   // '03.603.568/0001-95'

// With hidden digits
echo cnpj_fmt($cnpj, hidden: true);     // '03.603.***/****-**'

// Custom delimiters
echo cnpj_fmt($cnpj, dotKey: '', slashKey: '|', dashKey: '_');  // '03603568|0001_95'

// Custom hidden range
echo cnpj_fmt($cnpj, hidden: true, hiddenStart: 2, hiddenEnd: 8, hiddenKey: '#');  // '03###.###/0001-95'

Generation (cnpj_gen / CnpjUtils::generate)

Generates valid CNPJ numbers with optional formatting and prefix completion.

cnpj_gen(
    ?bool $format = null,
    ?string $prefix = null,
): string

Parameters:

Parameter	Type	Default	Description
format	?bool	false	Whether to format the output
prefix	?string	''	Prefix to complete with valid digits (1-12 digits)

Examples:

// Generate random CNPJ
echo cnpj_gen();                        // '65453043000178'

// Generate formatted CNPJ
echo cnpj_gen(format: true);            // '73.008.535/0005-06'

// Complete a prefix
echo cnpj_gen(prefix: '45623767');      // '45623767000296'

// Complete and format
echo cnpj_gen(prefix: '456237670002', format: true);  // '45.623.767/0002-96'

Validation (cnpj_val / CnpjUtils::isValid)

Validates CNPJ numbers using the official algorithm.

cnpj_val(string $cnpjString): bool

Examples:

// Valid CNPJ
echo cnpj_val('98765432000198');        // true
echo cnpj_val('98.765.432/0001-98');    // true

// Invalid CNPJ
echo cnpj_val('98765432000199');        // false

Advanced Usage

Accessing Individual Components

You can access the individual formatter, generator, and validator instances:

$brUtils = new BrUtils();

// Get individual components
$cpfFormatter = $brUtils->cpf->getFormatter();
$cpfGenerator = $brUtils->cpf->getGenerator();
$cpfValidator = $brUtils->cpf->getValidator();

$cnpjFormatter = $brUtils->cnpj->getFormatter();
$cnpjGenerator = $brUtils->cnpj->getGenerator();
$cnpjValidator = $brUtils->cnpj->getValidator();

// Use them directly
$cpfFormatter->format('11144477735', hidden: true);
$cpfGenerator->generate(format: true);
$cpfValidator->isValid('11144477735');

$cnpjFormatter->format('03603568000195', hidden: true);
$cnpjGenerator->generate(format: true);
$cnpjValidator->isValid('03603568000195');

Custom Error Handling

$cpf = '123'; // Invalid length
$cnpj = '456'; // Invalid length

// Custom fallback
echo cpf_fmt($cpf, onFail: fn($v) => "Invalid CPF: {$v}");  // 'Invalid CPF: 123'
echo cnpj_fmt($cnpj, onFail: fn($v) => "Invalid CNPJ: {$v}");  // 'Invalid CNPJ: 456'

// Return original value
echo cpf_fmt($cpf);  // '123'
echo cnpj_fmt($cnpj);  // '456'

Dependencies

This package is built on top of the following specialized packages:

• lacus/cnpj-utils - CNPJ utilities
• lacus/cpf-utils - CPF utilities

Contribution & Support

We welcome contributions! Please see our Contributing Guidelines for details. But if you find this project helpful, please consider:

• ⭐ Starring the repository
• 🤝 Contributing to the codebase
• 💡 Suggesting new features
• 🐛 Reporting bugs

License

This project is licensed under the MIT License - see the LICENSE file for details.

Changelog

See CHANGELOG for a list of changes and version history.

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Made with ❤️ by Lacus Solutions