Libraries tagged by nested object validation

Argonaut is a lightweight Data Transfer Object (DTO) package for Laravel that supports nested casting, recursive serialization, and validation out of the box. Ideal for service layers, APIs, and clean architecture workflows.

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Type-safe PHP form validation library with filtering, nested forms, and typed error objects. Zero dependencies.

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A framework-agnostic PHP DTO package that provides nested casting, recursive serialization, validation, assemblers, and immutable DTO support out of the box.

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Advanced DTO system with casting, validation, masks, nested DTOs

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Power up PHP arrays and objects and access nested data (even within functions) without worrying about validation.

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A modern, extensible PHP library for validating primitive data types, files, nested objects, and arrays of objects with reusable and centralized validation rules.

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

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Power up PHP arrays and objects and access nested data (even within functions) without worrying about validation.

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