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[Utility & Helpers](/categories/utility) 4. / 5. valksor/php-functions-handler ActiveLibrary[Utility & Helpers](/categories/utility) valksor/php-functions-handler ============================= A PHP library providing function handling utilities including a Chain of Responsibility pattern implementation and function execution utilities 01PHPCI passing Since Jan 24Pushed 3mo agoCompare [ Source](https://github.com/valksor/php-functions-handler)[ Packagist](https://packagist.org/packages/valksor/php-functions-handler)[ RSS](/packages/valksor-php-functions-handler/feed)WikiDiscussions master Synced 1mo ago READMEChangelogDependenciesVersions (1)Used By (0) Valksor Functions: Handler ========================== [](#valksor-functions-handler) [![valksor](https://camo.githubusercontent.com/2af5a6a7e5f7da47cd0a924c8b00038f208f45f9b0d5be8d7a497a9808168187/68747470733a2f2f62616467656e2e6e65742f7374617469632f6f72672f76616c6b736f722f677265656e)](https://github.com/valksor)[![BSD-3-Clause](https://camo.githubusercontent.com/72547f8afb6b5ace804caebbf95c3bcbfc027ce9214777bc452f308f3165db01/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4253442d2d332d2d436c617573652d677265656e3f7374796c653d666c6174)](https://github.com/valksor/php-functions-handler/blob/master/LICENSE)[![Coverage Status](https://camo.githubusercontent.com/2b699c1dc2593ee59fc3a0846e6b7e679ce12bd46e04449d1caeb4ac3f827e41/68747470733a2f2f636f766572616c6c732e696f2f7265706f732f6769746875622f76616c6b736f722f7068702d66756e6374696f6e732d68616e646c65722f62616467652e7376673f6272616e63683d6d6173746572)](https://coveralls.io/github/valksor/php-functions-handler?branch=master)[![php](https://camo.githubusercontent.com/77da2f7bbc049873edb2d1045a756d7a32e3ba50440a8e0e76a9109f62f0771b/68747470733a2f2f62616467656e2e6e65742f7374617469632f7068702f2533453d382e342f707572706c65)](https://www.php.net/releases/8.4/en.php) A PHP library providing function handling utilities including a Chain of Responsibility pattern implementation and function execution utilities. Installation ------------ [](#installation) Install the package via Composer: ``` composer require valksor/php-functions-handler ``` Requirements ------------ [](#requirements) PHP 8.4 or higher Usage ----- [](#usage) The Handler package provides several utilities for handling function execution and implementing the Chain of Responsibility pattern. ### Chain Class [](#chain-class) The Chain class implements a simple pipeline pattern for function composition: ``` use Valksor\Functions\Handler\Chain; // Create a new chain with an initial value $chain = new Chain('initial value'); // Or use the static factory method $chain = Chain::of('initial value'); // Pipe the value through a series of transformations $result = $chain ->pipe(fn($value) => strtoupper($value)) ->pipe(fn($value) => $value . ' - transformed') ->get(); // $result now contains "INITIAL VALUE - transformed" ``` ### Handler Interface and AbstractHandler [](#handler-interface-and-abstracthandler) The Handler interface and AbstractHandler class implement the Chain of Responsibility pattern: ``` use Valksor\Functions\Handler\AbstractHandler; use Valksor\Functions\Handler\Handler; // Create custom handlers by extending AbstractHandler class CustomHandler extends AbstractHandler { public function handle(...$arguments): mixed { // Process the request $result = $this->processRequest(...$arguments); // If this handler can't process the request, pass it to the next handler if (null === $result) { return parent::handle(...$arguments); } return $result; } private function processRequest(...$arguments): mixed { // Custom processing logic // Return null if this handler can't process the request } } // Chain handlers together $handler1 = new CustomHandler(); $handler2 = new AnotherCustomHandler(); $handler3 = new FinalHandler(); $handler1->next($handler2); $handler2->next($handler3); // Process a request through the chain $result = $handler1->handle($request); ``` ### FunctionHandler [](#functionhandler) The FunctionHandler executes a specified function as part of the chain: ``` use Valksor\Functions\Handler\FunctionHandler; // Create a handler for a global function $handler = new FunctionHandler('strtoupper'); $result = $handler->handle('hello'); // Returns "HELLO" // Create a handler for an object method $object = new YourClass(); $handler = new FunctionHandler('methodName', $object); $result = $handler->handle($arg1, $arg2); // Calls $object->methodName($arg1, $arg2) // Chain with other handlers $nextHandler = new AnotherHandler(); $handler->next($nextHandler); $result = $handler->handle('hello'); // If the function returns null, passes to next handler ``` Features -------- [](#features) For a complete list of all classes and methods available in this package, see [Features](docs/features.md). Contributing ------------ [](#contributing) Contributions are welcome! - Code style requirements (PSR-12) - Testing requirements for PRs - One feature per pull request - Development setup instructions To contribute to Handler functions: 1. Fork the repository 2. Create a feature branch (`git checkout -b feature/new-handler-function`) 3. Implement your function following existing patterns 4. Add comprehensive tests 5. Ensure all tests pass and code style is correct 6. Submit a pull request Security -------- [](#security) If you discover any security-related issues, please email us at instead of using the issue tracker. Support ------- [](#support) - **Documentation**: [Full documentation](https://github.com/valksor/php-valksor) - **Issues**: [GitHub Issues](https://github.com/valksor/php-valksor/issues) for bug reports and feature requests - **Discussions**: [GitHub Discussions](https://github.com/orgs/valksor/discussions/categories/php-valksor) for questions and community support Credits ------- [](#credits) - **[Original Author](https://github.com/valksor)** - Creator and maintainer - **[All Contributors](https://github.com/valksor/php-valksor/graphs/contributors)** - Thank you to all who contributed - **[Design Patterns](https://refactoring.guru/design-patterns/)** - Chain of Responsibility pattern inspiration - **[Valksor Project](https://github.com/valksor)** - Part of the larger Valksor PHP ecosystem License ------- [](#license) This package is licensed under the [BSD-3-Clause License](LICENSE). About Valksor ------------- [](#about-valksor) This package is part of the [valksor/php-valksor](https://github.com/valksor/php-valksor) project - a comprehensive PHP library and Symfony bundle that provides a collection of utilities, components, and integrations for Symfony applications. The main project includes: - Various utility functions and components - Doctrine ORM tools and extensions - Symfony bundle for easy configuration - And much more If you find this Handler component useful, you might want to check out the full Valksor project for additional tools and utilities that can enhance your Symfony application development. To install the complete package: ``` composer require valksor/php-valksor ``` ### Health Score 18 — LowBetter than 8% of packages Maintenance53 Moderate activity, may be stable Popularity1 Limited adoption so far Community6 Small or concentrated contributor base Maturity12 Early-stage or recently created project 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. 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