Show HN: PHP-ruler – strict rule engine in pure PHP, zero deps, explain mode

Category: library

Tags: rule-engine, php, business-rules

Score: 6.3/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 4)

PHP-ruler is a strict, dependency-free rule engine for PHP that evaluates business rules stored as strings with an explain mode and variable aliasing. It stands out by providing detailed evaluation traces and safe mode, making rules auditable and suitable for semi-trusted authors, though it deliberately avoids object access and method calls.

Target audience: backend devs

Repository: https://github.com/olivier-ls/php-ruler · PHP · MIT

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