Libraries tagged by schema validation

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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Advanced intelligent web scraper for Laravel with caching, rate limiting, middleware, monitoring, and much more. Built on Puppeteer with smart features.

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Zod-style schema validation with static type inference

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PHP JSON-RPC 2.0 client/server toolkit with middleware, schema validation, batch processing, introspection, and optional Safe Mode

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Configuration schema validation and processing library for PHP

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A PHP implementation of the JSON Schema validation standard

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The atoum xml extension allows you to make assertions on XML files

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Zod-style schema validation with static type inference

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Forkable core PHP framework with zero dependencies beyond PSR interfaces: SQL-first database layer with a federated virtual SQL engine, PSR-15 routing, template inheritance, ICU i18n, RFC 5322 mail, JSON Schema validation — provides implementations for the PSR container, http-message, http-client, simple-cache and log contracts

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A PHP implementation of the JSON Schema validation standard

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100% ECMA-262 compliant regular expression engine for PHP, designed for JSON Schema validation and full JavaScript regex compatibility

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JSON Schema Validator is a comprehensive tool for validating JSON data against JSON Schema definitions. It provides detailed error reporting with field-level validation results.

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Flexible Yii2 trait for working with JSON fields (dot-paths, validation schema, defaults, type casting, etc.)

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json-schema.org based validation and formatting

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The Vection Validator provides validation of data and schemas. A number of different validators are already included and can be applied in a chained manner.

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