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Valdeir S 570ba481b1 Add Support for Alphanumeric CNPJ

Due to the continuous increase in the number of companies and the
imminent exhaustion of available CNPJs (Brazilian taxpayer
identification numbers), the Brazilian Federal Revenue Service is
instituting the alphanumeric CNPJ. The initiative aims to
facilitate the identification of all companies and improve the
business environment, contributing to the economic and social
development of Brazil.

The alphanumeric CNPJ will be assigned, starting in July 2026,
exclusively to new registrations.

Changes:

- Add support for alphanumeric CNPJ validation
- Format code according to PHPCS standards
- Simplify CNPJ conversion to uppercase character array
- Add documentation about CNPJ structure

2026-02-04 13:20:30 +01:00

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Cnpj

Cnpj()

Validates the structure and mathematical integrity of Brazilian CNPJ identifiers. Ignores non-digit chars, so use ->digit() if needed.

v::cnpj()->assert('00394460005887');
// Validation passes successfully

v::cnpj()->assert('12ABC34501DE35');
// Validation passes successfully

Templates

`Cnpj::TEMPLATE_STANDARD`

Mode	Template
`default`	{{subject}} must be a CNPJ
`inverted`	{{subject}} must not be a CNPJ

Template placeholders

Placeholder	Description
`subject`	The validated input or the custom validator name (if specified).

Categorization

Identifications

Changelog

Version	Description
3.0.0	Templates changed
0.3.9	Created

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