Libraries tagged by object validation

Lean, attribute-driven Laravel data objects with explicit validation and Eloquent casting support

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Symfony validator for conditional validations based on object properties

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Type-safe invokable objects with attribute-based parameter and return value validation

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Object graph validation with recursive traversal, 21 built-in validators, and fluent field rule composition

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Data validation library. Validate arrays, array objects, domain models etc using a simple API. Easily add your own validators on top of the already dozens built-in validation rules. This fork maintains PHP 5.3 compatibility.

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Framework-agnostic PHP support library with typed helpers for strings, arrays, files, objects, validation, and security primitives

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A lightweight zero-dependency PHP library for building immutable, serializable objects with validation capabilities.

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Generate JSON Schemas from Laravel Data objects with validation attributes

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Domain layer foundation for PHP 8.2+ providing Value Objects with attribute-based validation, Entities, Aggregates, Rules, Specifications, Policies, Invariants, Transformers, and a framework-agnostic adapter system.

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A validator featuring rule objects, string rule mapping, wildcard validation and more

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Laravel package for URL value objects, sanitization pipelines, browser URL support, validation rules, request macros, and Laravel Data integration.

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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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Validation rules and an Eloquent Model attribute cast to value object encapsulating a South African government-issued personal identification number, for Laravel.

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Lagan lets you create flexible content objects with a simple class, and manage them with a web interface.

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Library for generating entities, that enforce data validity according to a specific schema.

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