Installation

Installation

Requirements

• PHP 8.1 or newer
• ext-mbstring (used for Unicode-aware length and case handling)
• No runtime dependencies beyond the PHP core

Install with Composer

composer require initphp/validation

Then make sure Composer's autoloader is loaded:

require __DIR__ . '/vendor/autoload.php';

Verify the install

<?php
declare(strict_types=1);
require __DIR__ . '/vendor/autoload.php';

use InitPHP\Validation\Validation;

echo Validation::VERSION; // e.g. "2.0.0"

The class you import

Everything is reachable through one class:

use InitPHP\Validation\Validation;

Exceptions live under the InitPHP\Validation\Exception namespace — see Exceptions.

Next

• Quick Start — your first validation in a few lines.
• The Validation Lifecycle — how rule() and validation() work together.