Libraries tagged by condition rules

A declarative rule engine for PHP that turns complex conditional logic into readable when-then rules. Features a fluent builder API, lazy-loaded context for performance, smart operator inference, and works seamlessly in pure PHP or WordPress.

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Modern constraint library with PHP 8.1+ type safety

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Fluent rule engine with proposition-based evaluation and 50+ operators for building conditional business logic

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This plugin expands on the ACF conditional functionality to allow for conditionals based on a selected taxonomy term ID.

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Enterprise-grade maker-checker (four-eyes) approval workflow for Laravel. Multi-role approvals, conditional rules engine, delegation, audit trail, bulk actions, and auto-intercept via Eloquent events.

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If-then validation rules for Yii2 Framework

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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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Adds API integrations, reCAPTCHA, conditional rules logic, premium field types, advanced exporting and widgets to Freeform.

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Additional rules for conditional equals validation

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Executes a validation after other validation rules have been successfully passed

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This module enables store owners to create conditional notifications in minicart and cart page based on product attributes.

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Library for being able to define logical rules and conditional outcomes

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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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Treat your business logic as data with this dynamic, data-driven engine for Laravel.

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Conditional, parallel, delegated, and escalated approval rules for Marpod B2B Advanced.

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