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[Directory](/) 2. / 3. webtheory/collection ActiveLibrary webtheory/collection ==================== Create typed collections and defer logic to collection kernel 0.5.4(3y ago)13711MITPHPPHP ^7.4 || ^8.0 Since Apr 19Pushed 2y ago1 watchersCompare [ Source](https://github.com/spider-mane/collection)[ Packagist](https://packagist.org/packages/webtheory/collection)[ Docs](https://github.com/spider-mane/collection)[ RSS](/packages/webtheory-collection/feed)WikiDiscussions master Synced 1mo ago READMEChangelogDependencies (24)Versions (11)Used By (1) Collection ========== [](#collection) A message to Russian 🇷🇺 people ------------------------------ [](#a-message-to-russian--people) If you currently live in Russia, please read [this message](https://github.com/vshymanskyy/StandWithUkraine/blob/main/docs/ToRussianPeople.md). [![Stand With Ukraine](https://raw.githubusercontent.com/vshymanskyy/StandWithUkraine/main/banner2-direct.svg)](https://stand-with-ukraine.pp.ua) [![Stand With Ukraine](https://raw.githubusercontent.com/vshymanskyy/StandWithUkraine/main/badges/StandWithUkraine.svg)](https://stand-with-ukraine.pp.ua)[![Latest Version on Packagist](https://camo.githubusercontent.com/4028c8063e1103cb51e67bdc92bede6fd0babfbaedc81b58b467e88b5e4f3fe8/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f7765627468656f72792f636f6c6c656374696f6e2e737667)](https://packagist.org/packages/webtheory/collection)[![Build Status](https://camo.githubusercontent.com/581e61a09d3f2d1a23ccda55e5cabb05509c30b298808e480d53217d95544d11/68747470733a2f2f696d672e736869656c64732e696f2f7363727574696e697a65722f6275696c642f672f7370696465722d6d616e652f636f6c6c656374696f6e2e737667)](https://scrutinizer-ci.com/g/spider-mane/collection)[![Code Quality](https://camo.githubusercontent.com/e60c92c804ffe4654534c9b135e42214e75fff407b34a5d51b8d0415c71ee735/68747470733a2f2f696d672e736869656c64732e696f2f7363727574696e697a65722f672f7370696465722d6d616e652f636f6c6c656374696f6e2e737667)](https://scrutinizer-ci.com/g/spider-mane/collection)[![Code Coverage](https://camo.githubusercontent.com/053123942da3622efedbff59395c09f483a552cd149a054545343145905f3098/68747470733a2f2f696d672e736869656c64732e696f2f7363727574696e697a65722f636f7665726167652f672f7370696465722d6d616e652f636f6c6c656374696f6e2e737667)](https://scrutinizer-ci.com/g/spider-mane/collection)[![Total Downloads](https://camo.githubusercontent.com/7be54c1b29636df4e61fa12efc8187d16917706a91cee426623c59634f7544d6/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f64742f7765627468656f72792f636f6c6c656374696f6e2e737667)](https://packagist.org/packages/webtheory/collection/stats)[![Software License](https://camo.githubusercontent.com/074b89bca64d3edc93a1db6c7e3b1636b874540ba91d66367c0e5e354c56d0ea/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6c6963656e73652d4d49542d627269676874677265656e2e737667)](LICENSE.md)[![Required PHP Version](https://camo.githubusercontent.com/f64fb6241175fe44dd4ea15212ee264c5a56525305da6b968ba18a6e005c9126/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f7068702d762f7765627468656f72792f636f6c6c656374696f6e2e7376673f636f6c6f72423d253233383839324246)](https://php.net) Purpose ------- [](#purpose) This package facilitates the creation of typed collections without having to duplicate underlying logic. Due to PHP's enforcement of [Liskov Substitution Principle](https://php.watch/articles/php-lsp) via [method covariance and contravariance](https://www.php.net/manual/en/language.oop5.variance.php), it's not possible to create a natively typed collection using inheritance so long as you need methods that operate on specific types. This package provides a configurable 'collection kernel' class that stores and performs operations on a given array. Rather than inheritance, this paradigm uses composition to fulfil basic collection functionality. Besides enabling strong typing, one of the many benefits of this approach is that you have complete control over the operations to be exposed by your collections. Installation ------------ [](#installation) Via Composer ``` composer require webtheory/collection ``` Usage ----- [](#usage) ``` ``` Change log ---------- [](#change-log) Please see [CHANGELOG](CHANGELOG.md) for more information on what has changed recently. Testing ------- [](#testing) ``` composer test ``` Contributing ------------ [](#contributing) Please see [CONTRIBUTING](CONTRIBUTING.md) and [CODE\_OF\_CONDUCT](CODE_OF_CONDUCT.md) for details. Security -------- [](#security) If you discover any security related issues, please email instead of using the issue tracker. Credits ------- [](#credits) - [Chris Williams](https://github.com/spider-mane) - [All Contributors](../../contributors) License ------- [](#license) The MIT License (MIT). Please see [License File](LICENSE.md) for more information. ### Health Score 26 — LowBetter than 43% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity14 Limited adoption so far Community9 Small or concentrated contributor base Maturity50 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 ~7 days Total 10 Last Release 1420d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/42c6c17a141acad92bd90ad7b7e574ea19ecb332f33272a041261566670576cf?d=identicon)[webtheory](/maintainers/webtheory) --- Top Contributors [![spider-mane](https://avatars.githubusercontent.com/u/17187449?v=4)](https://github.com/spider-mane "spider-mane (33 commits)") --- Tags webtheory ### Code Quality TestsPHPUnit Static AnalysisPHPStan, Psalm, Rector Code StylePHP CS Fixer Type Coverage Yes ### Embed Badge ![Health badge](/badges/webtheory-collection/health.svg) ``` [![Health](https://phpackages.com/badges/webtheory-collection/health.svg)](https://phpackages.com/packages/webtheory-collection) ``` ### Alternatives [composer/composer Composer helps you declare, manage and install dependencies of PHP projects. 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