Libraries tagged by validation engine

Apex generic infrastructure foundation, HTTP engine and security for Hyperf

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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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Framework-agnostic PHP chess core for move validation, game state management, FEN/PGN handling, and engine integration.

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Lightweight validation rule execution orchestrator for the Aegisora ecosystem

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Shared AI backend for LaravelDesign, Elgg, and any PHP application that wants first-class Anthropic Claude integration. Ships an HTTP client, reusable prompt templates, per-user/per-license usage tracking, and license-key validation.

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Official PHP SDK for BigDataCloud APIs — IP Geolocation, Reverse Geocoding, Phone & Email Verification, Network Engineering

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A lightweight and extensible validation engine for ImpulsePHP components. Provides form validation rules and unified syntax for server-side validation.

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MokoCLI - enterprise CLI automation, validation, and governance engine for all Moko Consulting repositories

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Framework independent PHP REST models with schema validation and multiple database engine support.

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Framework-agnostic, typed settings engine for PHP 8.5+. Resolves persistent per-scope overrides over application defaults, with provenance, strict validation and an optional PSR-16 cache.

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File Upload widget with multiple file selection, drag&drop support, progress bar, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.

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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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Extensible Laravel filtering engine with Amazon-style faceted search. Supports field types (string, numeric, boolean, date), operator-level validation, clean structured errors, and automatic query builder mapping. Perfect for APIs, dashboards, and complex multi-field filters.

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Flexible and developer-friendly solution for creating, managing, and validating discount rules in PHP application

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A rule engine validator and executor for Swapbot

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