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[Utility & Helpers](/categories/utility) 4. / 5. philiprehberger/php-rule-engine ActiveLibrary[Utility & Helpers](/categories/utility) philiprehberger/php-rule-engine =============================== Lightweight business rule engine with declarative conditions and actions v1.1.0(2mo ago)138MITPHPPHP ^8.2CI passing Since Mar 15Pushed 1mo agoCompare [ Source](https://github.com/philiprehberger/php-rule-engine)[ Packagist](https://packagist.org/packages/philiprehberger/php-rule-engine)[ Docs](https://github.com/philiprehberger/php-rule-engine)[ GitHub Sponsors](https://github.com/philiprehberger)[ RSS](/packages/philiprehberger-php-rule-engine/feed)WikiDiscussions main Synced 3w ago READMEChangelogDependencies (6)Versions (9)Used By (0) PHP Rule Engine =============== [](#php-rule-engine) [![Tests](https://github.com/philiprehberger/php-rule-engine/actions/workflows/tests.yml/badge.svg)](https://github.com/philiprehberger/php-rule-engine/actions/workflows/tests.yml)[![Latest Version on Packagist](https://camo.githubusercontent.com/5d2f6a092b3dd1c850391dc4257b428b566e6deb3da2b03a77335db7b4596ea8/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f7068696c69707265686265726765722f7068702d72756c652d656e67696e652e737667)](https://packagist.org/packages/philiprehberger/php-rule-engine)[![Last updated](https://camo.githubusercontent.com/93df1213292c2434aa894725e982b669393580ddbb71acf95c63efff07b36850/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6173742d636f6d6d69742f7068696c69707265686265726765722f7068702d72756c652d656e67696e65)](https://github.com/philiprehberger/php-rule-engine/commits/main) Lightweight business rule engine with declarative conditions and actions. Requirements ------------ [](#requirements) - PHP 8.2+ Installation ------------ [](#installation) ``` composer require philiprehberger/php-rule-engine ``` Usage ----- [](#usage) ### Basic Rule [](#basic-rule) ``` use PhilipRehberger\RuleEngine\RuleEngine; $result = RuleEngine::create() ->rule('adult') ->when('age', '>=', 18) ->then(fn ($ctx) => "Welcome, {$ctx['name']}!") ->build() ->evaluate(['name' => 'Alice', 'age' => 25]); $result->hasMatches(); // true $result->first()->actionResult; // "Welcome, Alice!" ``` ### Multiple Conditions [](#multiple-conditions) ``` $result = RuleEngine::create() ->rule('vip-discount') ->when('role', '=', 'vip') ->andWhen('total', '>=', 100) ->then(fn () => ['discount' => 0.2]) ->build() ->rule('bulk-discount') ->when('quantity', '>=', 50) ->orWhen('total', '>=', 500) ->then(fn () => ['discount' => 0.1]) ->build() ->evaluate(['role' => 'vip', 'total' => 150, 'quantity' => 10]); ``` ### Negated Conditions [](#negated-conditions) ``` $engine = RuleEngine::create() ->rule('active-non-banned') ->when('active', '=', true) ->notWhen('status', '=', 'banned') ->then(fn () => 'access granted') ->build(); ``` ### Priority and Stop-on-Match [](#priority-and-stop-on-match) ``` $engine = RuleEngine::create() ->rule('high-priority') ->when('value', '>', 0) ->then(fn () => 'important') ->priority(10) ->stopOnMatch() ->build() ->rule('low-priority') ->when('value', '>', 0) ->then(fn () => 'fallback') ->priority(1) ->build(); $result = $engine->evaluate(['value' => 5]); // Only 'high-priority' matches because stopOnMatch is set ``` ### First Match Only [](#first-match-only) ``` $result = $engine->evaluateFirst(['value' => 5]); // Returns a single RuleResult or null ``` ### Nested Context with Dot Notation [](#nested-context-with-dot-notation) ``` $result = RuleEngine::create() ->rule('city-check') ->when('user.address.city', '=', 'Vienna') ->then(fn () => 'local') ->build() ->evaluate([ 'user' => [ 'address' => ['city' => 'Vienna'], ], ]); ``` ### Compiled Rule Engine [](#compiled-rule-engine) ``` $compiled = RuleEngine::create() ->rule('adult') ->when('age', '>=', 18) ->then(fn () => 'allowed') ->build() ->compile(); // Evaluate multiple contexts with pre-compiled closures $result = $compiled->evaluate(['age' => 25]); $first = $compiled->evaluateFirst(['age' => 25]); ``` ### Audit Mode [](#audit-mode) ``` $result = RuleEngine::create() ->rule('a') ->when('x', '>', 0) ->then(fn () => 'matched') ->build() ->withAudit() ->evaluate(['x' => 5]); $result->auditEntries(); // Array of AuditEntry objects $result->evaluatedCount(); // Number of rules evaluated $result->skippedCount(); // Number of rules skipped ``` ### Rule Validation [](#rule-validation) ``` $engine = RuleEngine::create(); $engine->addRule(new Rule('no-conditions', [], fn () => 'x')); $warnings = $engine->validate(); // ["Rule 'no-conditions' has no conditions and will always match."] ``` ### Custom Context Accessor [](#custom-context-accessor) Implement `ContextAccessor` to read values from any data structure: ``` use PhilipRehberger\RuleEngine\Contracts\ContextAccessor; class EloquentAccessor implements ContextAccessor { public function get(mixed $context, string $path): mixed { return data_get($context, $path); } public function has(mixed $context, string $path): bool { return data_get($context, $path) !== null; } } $engine = RuleEngine::create(new EloquentAccessor()); ``` API --- [](#api) ### RuleEngine [](#ruleengine) MethodDescription`RuleEngine::create(?ContextAccessor $accessor = null): self`Create a new engine instance`->rule(string $name): RuleBuilder`Begin defining a named rule`->evaluate(mixed $context): EvaluationResult`Evaluate all rules, return all matches`->evaluateFirst(mixed $context): ?RuleResult`Evaluate rules, return first match only`->compile(): CompiledRuleEngine`Pre-compile rules into optimized closures`->withAudit(): self`Enable audit mode for detailed tracking`->validate(): array`Validate rule configuration, return warnings### RuleBuilder [](#rulebuilder) MethodDescription`->when(string $path, string $operator, mixed $value)`Add the first condition`->andWhen(string $path, string $operator, mixed $value)`Add an AND condition`->orWhen(string $path, string $operator, mixed $value)`Add an OR condition`->notWhen(string $path, string $operator, mixed $value)`Add a negated AND condition`->then(callable $action)`Set the action to execute on match`->priority(int $priority)`Set rule priority (higher runs first)`->stopOnMatch(bool $stop = true)`Stop evaluation after this rule matches`->build(): RuleEngine`Build the rule and return the engine### CompiledRuleEngine [](#compiledruleengine) MethodDescription`->evaluate(mixed $context): EvaluationResult`Evaluate compiled rules, return all matches`->evaluateFirst(mixed $context): ?RuleResult`Evaluate compiled rules, return first match only### Operators [](#operators) OperatorDescription`=`, `==`Loose equality`===`Strict equality`!=`, ``Loose inequality`!==`Strict inequality`>`, `=`, `hasMatches(): bool`Whether any rules matched`->count(): int`Number of matched rules`->first(): ?RuleResult`First matched result or null`->actionResults(): array`All action return values`->ruleNames(): array`All matched rule names### AuditResult (extends EvaluationResult) [](#auditresult-extends-evaluationresult) MethodDescription`->auditEntries(): array`All audit entries`->evaluatedCount(): int`Number of rules evaluated`->skippedCount(): int`Number of rules skipped### RuleResult [](#ruleresult) PropertyTypeDescription`$ruleName``string`Name of the matched rule`$actionResult``mixed`Return value of the actionDevelopment ----------- [](#development) ``` composer install vendor/bin/phpunit vendor/bin/pint --test ``` Support ------- [](#support) If you find this project useful: ⭐ [Star the repo](https://github.com/philiprehberger/php-rule-engine) 🐛 [Report issues](https://github.com/philiprehberger/php-rule-engine/issues?q=is%3Aissue+is%3Aopen+label%3Abug) 💡 [Suggest features](https://github.com/philiprehberger/php-rule-engine/issues?q=is%3Aissue+is%3Aopen+label%3Aenhancement) ❤️ [Sponsor development](https://github.com/sponsors/philiprehberger) 🌐 [All Open Source Projects](https://philiprehberger.com/open-source-packages) 💻 [GitHub Profile](https://github.com/philiprehberger) 🔗 [LinkedIn Profile](https://www.linkedin.com/in/philiprehberger) License ------- [](#license) [MIT](LICENSE) ### Health Score 41 — FairBetter than 87% of packages Maintenance88 Actively maintained with recent releases Popularity9 Limited adoption so far Community6 Small or concentrated contributor base Maturity52 Maturing project, gaining track record Bus Factor1 Top contributor holds 100% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~1 days Total 8 Last Release 88d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/cfd7d24cbbf32400fa13ce0bbe7a31edd2d66a6d4488eafdb3d64c5337bf0435?d=identicon)[philiprehberger](/maintainers/philiprehberger) --- Top Contributors [![philiprehberger](https://avatars.githubusercontent.com/u/8218077?v=4)](https://github.com/philiprehberger "philiprehberger (13 commits)") --- Tags phpEvaluationbusiness-rulesconditionsrule-engine ### Code Quality TestsPHPUnit Static AnalysisPHPStan Code StyleLaravel Pint Type Coverage Yes ### Embed Badge ![Health badge](/badges/philiprehberger-php-rule-engine/health.svg) ``` [![Health](https://phpackages.com/badges/philiprehberger-php-rule-engine/health.svg)](https://phpackages.com/packages/philiprehberger-php-rule-engine) ``` ### Alternatives [imanghafoori/laravel-anypass A minimal yet powerful package to help you in development. 21422.6k](/packages/imanghafoori-laravel-anypass) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)