Ecuador ID (Cedula) and RUC Validator

A PHP library for validating Ecuadorian identification documents:

• Cedula (National ID - 10 digits)
• RUC for Natural Persons (13 digits, third digit 0-5)
• RUC for Private Companies (13 digits, third digit 9)
• RUC for Public Companies (13 digits, third digit 6)

Requirements

• PHP 8.2 or higher

Installation

composer require tavo1987/ec-validador-cedula-ruc

Usage

Basic Setup

require 'vendor/autoload.php';

use Tavo\ValidadorEc;

$validator = new ValidadorEc();

Quick Validation (Static Methods)

For simple validation without creating an instance:

// Validate any document type
if (ValidadorEc::isValid('0926687856')) {
    echo 'Valid document';
}

// Validate specific document types
ValidadorEc::isValidCedula('0926687856');              // true
ValidadorEc::isValidNaturalPersonRuc('0926687856001'); // true
ValidadorEc::isValidPrivateCompanyRuc('0992397535001'); // true
ValidadorEc::isValidPublicCompanyRuc('1760001550001'); // true

Universal Validation (Auto-detect document type)

The validate() method automatically detects and validates any document type:

// Cedula (10 digits)
if ($validator->validate('0926687856')) {
    echo 'Valid: ' . $validator->getDocumentType(); // "cedula"
}

// Natural Person RUC (13 digits, third digit 0-5)
if ($validator->validate('0926687856001')) {
    echo 'Valid: ' . $validator->getDocumentType(); // "ruc_natural"
}

// Public Company RUC (13 digits, third digit 6)
if ($validator->validate('1760001550001')) {
    echo 'Valid: ' . $validator->getDocumentType(); // "ruc_public"
}

// Private Company RUC (13 digits, third digit 9)
if ($validator->validate('0992397535001')) {
    echo 'Valid: ' . $validator->getDocumentType(); // "ruc_private"
}

Specific Validation Methods

If you know the document type beforehand:

// Validate Cedula
if ($validator->validateCedula('0926687856')) {
    echo 'Valid Cedula';
} else {
    echo 'Error: ' . $validator->getError();
}

// Validate Natural Person RUC
if ($validator->validateNaturalPersonRuc('0926687856001')) {
    echo 'Valid RUC';
}

// Validate Private Company RUC
if ($validator->validatePrivateCompanyRuc('0992397535001')) {
    echo 'Valid RUC';
}

// Validate Public Company RUC
if ($validator->validatePublicCompanyRuc('1760001550001')) {
    echo 'Valid RUC';
}

Extract Cedula from RUC

For Natural Person RUC, you can extract the cedula portion:

$cedula = $validator->extractCedulaFromRuc('0926687856001');
// Returns: '0926687856'

// Returns null for Private/Public Company RUC (no cedula)
$result = $validator->extractCedulaFromRuc('0992397535001');
// Returns: null

// Returns null for invalid RUC
$result = $validator->extractCedulaFromRuc('invalid');
// Returns: null

Available Constants

ValidadorEc::TYPE_CEDULA       // 'cedula'
ValidadorEc::TYPE_RUC_NATURAL  // 'ruc_natural'
ValidadorEc::TYPE_RUC_PRIVATE  // 'ruc_private'
ValidadorEc::TYPE_RUC_PUBLIC   // 'ruc_public'

API Reference

Static Methods

Method	Description
ValidadorEc::isValid(string $number)	Quick validation of any document type
ValidadorEc::isValidCedula(string $number)	Quick cedula validation
ValidadorEc::isValidNaturalPersonRuc(string $number)	Quick natural person RUC validation
ValidadorEc::isValidPrivateCompanyRuc(string $number)	Quick private company RUC validation
ValidadorEc::isValidPublicCompanyRuc(string $number)	Quick public company RUC validation

Instance Methods

Method	Description
validate(string $number)	Auto-detect and validate any document
validateCedula(string $number)	Validate Cedula (10 digits)
validateNaturalPersonRuc(string $number)	Validate Natural Person RUC (13 digits)
validatePrivateCompanyRuc(string $number)	Validate Private Company RUC (13 digits)
validatePublicCompanyRuc(string $number)	Validate Public Company RUC (13 digits)
extractCedulaFromRuc(string $ruc)	Extract cedula from natural person RUC
getDocumentType()	Get detected document type after validation
getError()	Get error message from last validation

Document Structure

Document Type	Digits	Third Digit	Algorithm
Cedula	10	0-5*	Modulo 10
RUC Natural Person	13	0-5*	Modulo 10
RUC Private Company	13	9	Modulo 11
RUC Public Company	13	6	Modulo 11

*For province code 30, third digit validation is skipped (see below).

Province Codes

The first two digits represent the province:

Code	Province
01	Azuay
02	Bolivar
03	Cañar
04	Carchi
05	Cotopaxi
06	Chimborazo
07	El Oro
08	Esmeraldas
09	Guayas
10	Imbabura
11	Loja
12	Los Rios
13	Manabi
14	Morona Santiago
15	Napo
16	Pastaza
17	Pichincha
18	Tungurahua
19	Zamora Chinchipe
20	Galapagos
21	Sucumbios
22	Orellana
23	Santo Domingo de los Tsachilas
24	Santa Elena
30	Foreign residents

Foreign Residents (Code 30)

Province code 30 is for "ecuatorianos registrados en el exterior" (Ecuadorians abroad) and foreign residents:

• Third digit validation is skipped
• Check digit (Modulo 10) validation is still performed

Validation Limitations

This library uses algorithmic validation (Modulo 10/11). Known limitations:

1. Foreign natural persons without cedula: RUCs for foreigners may not follow standard validation. Verify through SRI web services.

2. Critical applications: Consider complementing with official SRI database queries.

Testing

# Run all tests
./vendor/bin/phpunit

# Run with coverage
./vendor/bin/phpunit --coverage-text

Changelog

v2.0.0

• Breaking: Minimum PHP version is now 8.2
• Breaking: All method names now in English
• Breaking: Constants renamed (TIPO_* → TYPE_*)
• Breaking: Removed all Spanish method names
• New universal validate() method with auto-detection
• New getDocumentType() method
• New static methods for quick validation (isValid(), isValidCedula(), etc.)
• New extractCedulaFromRuc() method to extract cedula from natural person RUC
• Support for province code 30 (foreign residents)
• Class is now final
• Optimized with match expressions
• 93 comprehensive tests

v1.0.2

• Fixed namespace issues

v1.0.0

• Initial release

License

MIT License - see LICENSE file for details.

Authors

Edwin Ramirez

• Twitter: @edwin_tavo
• GitHub: @tavo1987

Bryan Suarez

• Twitter: @BryanSC_7