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[Utility & Helpers](/categories/utility) 4. / 5. palmtree/collection ActiveLibrary[Utility & Helpers](/categories/utility) palmtree/collection =================== Immutable collections which provide commonly used functionality missing from arrays v6.2.1(6mo ago)27.8k↓41.2%2MITPHPPHP >=8.1CI passing Since Aug 25Pushed 6mo ago1 watchersCompare [ Source](https://github.com/palmtreephp/collection)[ Packagist](https://packagist.org/packages/palmtree/collection)[ RSS](/packages/palmtree-collection/feed)WikiDiscussions master Synced 1mo ago READMEChangelogDependencies (3)Versions (25)Used By (2) 🌴 Palmtree Collection ===================== [](#palm_tree-palmtree-collection) [![License](https://camo.githubusercontent.com/f5f59054fc2ef66ddef7b0540e065affbbf6668a856f5a9d83cce9dc3773e624/687474703a2f2f696d672e736869656c64732e696f2f7061636b61676973742f6c2f70616c6d747265652f636f6c6c656374696f6e2e737667)](LICENSE)[![Build](https://camo.githubusercontent.com/36d55e17ae895f0009b015631f911029ccb79cd680eaf144f11f6d1395d5c0ea/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f616374696f6e732f776f726b666c6f772f7374617475732f70616c6d747265657068702f636f6c6c656374696f6e2f6275696c642e79616d6c3f6272616e63683d6d6173746572)](https://github.com/palmtreephp/collection/actions/workflows/build.yaml)[![Packagist Version](https://camo.githubusercontent.com/559e82f8f438fb339ddcc151cb3130fec0f7257ef2e2659345ae22a141e1f588/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f70616c6d747265652f636f6c6c656374696f6e)](https://packagist.org/packages/palmtree/collection) Immutable collections which provide commonly used functionality missing from arrays. Requirements ------------ [](#requirements) - PHP >= 8.1 Installation ------------ [](#installation) Use composer to add the package to your dependencies: ``` composer require palmtree/collection ``` Usage ----- [](#usage) Collections can be used just like arrays for the most part. They implement [`ArrayAccess`](https://www.php.net/manual/en/class.arrayaccess), [`Traversable`](https://www.php.net/manual/en/class.traversable) and [`Countable`](https://www.php.net/manual/en/class.countable): ``` use function Palmtree\Collection\c; $collection = c(['foo' => 'bar', 'baz' => 'qux']); $foo = $collection['foo']; $collection['baz2'] = 'qux'; isset($collection['baz']); // true unset($collection['baz']); count($collection); foreach ($collection as $key => $value) { // do stuff with value and/or key } // find returns the first matching element $foo = $collection->find(fn ($v) => $v === 'bar'); // filter returns a new filtered collection $quxCollection = $collection->filter(fn ($v) => $v === 'qux'); ``` ``` use function Palmtree\Collection\c; $collection = c([1, 9, 5, 3, 7, 10]) ->sort() ->filter(fn ($i) $i < 10) ->values() // returns true as every element remaining in the collection is odd $isAllOdd = $collection->every(fn ($i) => $i % 2 !== 0); // returns false as it was removed in our filter $collection->contains(10); // returns true as at least one of the elements is false c([true, true, false, true, true])->some(fn ($v) => !$v); ``` Many other methods are provided. Read through the documented [source code](src/Collection.php) to see more. ### Generics [](#generics) The library supports template annotations for use by static analysers such as Psalm and PHPStan: ``` /** @var Collection **/ $collection = new Collection(); $collection->add(new Foo()); foreach ($collection as $foo) { // Psalm/PHPStan and PhpStorm know that $foo is an instance of Foo here } ``` License ------- [](#license) Released under the [MIT license](LICENSE) ### Health Score 50 — FairBetter than 96% of packages Maintenance66 Regular maintenance activity Popularity26 Limited adoption so far Community11 Small or concentrated contributor base Maturity81 Battle-tested with a long release history 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 ~131 days Recently: every ~202 days Total 21 Last Release 200d ago Major Versions v1.0.0 → v2.0.02018-09-11 v2.2.1 → v3.0.02021-02-17 v3.0.0 → v4.0.02021-02-21 v4.0.0 → v5.0.02021-05-09 v4.0.1 → v6.0.02023-08-13 PHP version history (6 changes)v1.0.0PHP >=5.6 v2.0.0PHP >=7.1 v4.0.0PHP >=7.4 v5.0.5PHP ^7.4||^8.0 v6.0.0PHP ^8.1 v6.2.0PHP >=8.1 ### Community Maintainers ![](https://www.gravatar.com/avatar/93cd57de0c03bc08173bbe424ce641b70b1bb9421f8d8fd474a33409a0f1644d?d=identicon)[palmtree](/maintainers/palmtree) --- Top Contributors [![andyexeter](https://avatars.githubusercontent.com/u/6660584?v=4)](https://github.com/andyexeter "andyexeter (171 commits)") --- Tags collectionphp ### Code Quality TestsPHPUnit Static AnalysisPHPStan Type Coverage Yes ### Embed Badge ![Health badge](/badges/palmtree-collection/health.svg) ``` [![Health](https://phpackages.com/badges/palmtree-collection/health.svg)](https://phpackages.com/packages/palmtree-collection) ``` ### Alternatives [woutersioen/sir-trevor-php A Sir Trevor to HTML conversion helper for PHP 2834.6k](/packages/woutersioen-sir-trevor-php)[naxon/laravel-url-uploaded-file A package to leverage Laravel's UploadedFile functionality from URLs. 176.4k](/packages/naxon-laravel-url-uploaded-file) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)