Libraries tagged by fluent validation

Provides a fluent pattern for validation in both PHP and Javascript

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Translate Fluent Forms using Polylang — field labels, validation messages, confirmation messages, and notification emails — all from Polylang's Strings translations page.

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Advanced validation library with multiple API styles including JSON templates, inline rules, builder pattern, and functional composition. Features 50+ built-in validators, dot notation for nested objects, field reference resolution, and internationalization support. Zero dependencies, fully synchronous, and designed for maximum developer experience with extensible custom rule system.

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An expressive, type-safe fluent validation rules interface for Yii2 Framework.

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The only PHP dotenv with auto type casting, AES-256-GCM encryption, OPcache caching, fluent validation DSL, environment-aware loading, and CLI tooling — zero dependencies, PHP 8.4+, ARFA 1.3.

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A modern, strictly-typed PHP 8.2+ environment loader with fluent validation, type inference, integrity checking, and structured error rendering.

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Simple and fluent input validation for PHP 8.2+.

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Fluent helpers for Strings, Numbers, Arrays/Iterables, Phone numbers, Emails and Countries, backed by real ISO country / dialing-code data.

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SpiderForm - Modern PHP Form Builder with Chain Pattern. Weaving perfect forms for Symfony & Laravel

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Modern PHP Form Generator with Chain Pattern - Supports Symfony, Laravel, Twig, and Smarty

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Fluent data schema validator with nested objects, arrays, and dot-notation errors

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An expressive PHP library for crafting regular expressions fluently.

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A lightweight JSON Schema builder for Laravel with fluent API

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Lightweight PHP library for validating form input with a fluent, Laravel-like rule syntax.

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Fluent data validator with chainable rules and i18n support

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