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[Utility & Helpers](/categories/utility) 4. / 5. phar-io/version ActiveLibrary[Utility & Helpers](/categories/utility) phar-io/version =============== Library for handling version information and constraints 3.2.1(4y ago)7.5k800.5M↓24.5%18[3 issues](https://github.com/phar-io/version/issues)[2 PRs](https://github.com/phar-io/version/pulls)20BSD-3-ClausePHPPHP ^7.2 || ^8.0CI failing Since Mar 3Pushed 2mo ago3 watchersCompare [ Source](https://github.com/phar-io/version)[ Packagist](https://packagist.org/packages/phar-io/version)[ RSS](/packages/phar-io-version/feed)WikiDiscussions master Synced 2w ago READMEChangelog (9)DependenciesVersions (16)Used By (20) Version ======= [](#version) Library for handling version information and constraints [![CI](https://github.com/phar-io/version/actions/workflows/ci.yml/badge.svg)](https://github.com/phar-io/version/actions/workflows/ci.yml) Installation ------------ [](#installation) You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/): ``` composer require phar-io/version ``` If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency: ``` composer require --dev phar-io/version ``` Version constraints ------------------- [](#version-constraints) A Version constraint describes a range of versions or a discrete version number. The format of version numbers follows the schema of [semantic versioning](http://semver.org): `..`. A constraint might contain an operator that describes the range. Beside the typical mathematical operators like `=`, there are two special operators: *Caret operator*: `^1.0`can be written as `>=1.0.0 =1.0.0 parse( '^7.0' ); $caret_constraint->complies( new Version( '7.0.17' ) ); // true $caret_constraint->complies( new Version( '7.1.0' ) ); // true $caret_constraint->complies( new Version( '6.4.34' ) ); // false $tilde_constraint = $parser->parse( '~1.1.0' ); $tilde_constraint->complies( new Version( '1.1.4' ) ); // true $tilde_constraint->complies( new Version( '1.2.0' ) ); // false ``` As of version 2.0.0, pre-release labels are supported and taken into account when comparing versions: ``` $leftVersion = new PharIo\Version\Version('3.0.0-alpha.1'); $rightVersion = new PharIo\Version\Version('3.0.0-alpha.2'); $leftVersion->isGreaterThan($rightVersion); // false $rightVersion->isGreaterThan($leftVersion); // true ``` ### Health Score 67 — FairBetter than 99% of packages Maintenance56 Moderate activity, may be stable Popularity83 Widely adopted with strong download metrics Community38 Small or concentrated contributor base Maturity76 Established project with proven stability Bus Factor1 Top contributor holds 60.2% 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 ~151 days Recently: every ~108 days Total 13 Last Release 1638d ago Major Versions 1.0.1 → 2.0.02018-06-23 2.0.1 → 3.0.02020-05-05 PHP version history (3 changes)1.0.0PHP ^5.6 || ^7.0 3.0.0PHP ^7.2 3.0.2PHP ^7.2 || ^8.0 ### Community Maintainers ![](https://avatars.githubusercontent.com/u/1089?v=4)[Sebastian Probst Eide](/maintainers/sebastian)[@sebastian](https://github.com/sebastian) ![](https://www.gravatar.com/avatar/0fc8fe1ac311fb26137cc3b26cd6c1bbb58c9ac4f287eb9d8242a741cef9a502?d=identicon)[theseer](/maintainers/theseer) --- Top Contributors [![theseer](https://avatars.githubusercontent.com/u/111333?v=4)](https://github.com/theseer "theseer (62 commits)")[![sebastianheuer](https://avatars.githubusercontent.com/u/169095?v=4)](https://github.com/sebastianheuer "sebastianheuer (19 commits)")[![sebastianbergmann](https://avatars.githubusercontent.com/u/25218?v=4)](https://github.com/sebastianbergmann "sebastianbergmann (9 commits)")[![localheinz](https://avatars.githubusercontent.com/u/605483?v=4)](https://github.com/localheinz "localheinz (3 commits)")[![Ayesh](https://avatars.githubusercontent.com/u/811553?v=4)](https://github.com/Ayesh "Ayesh (2 commits)")[![exussum12](https://avatars.githubusercontent.com/u/1102850?v=4)](https://github.com/exussum12 "exussum12 (2 commits)")[![TomasVotruba](https://avatars.githubusercontent.com/u/924196?v=4)](https://github.com/TomasVotruba "TomasVotruba (1 commits)")[![dnaber-de](https://avatars.githubusercontent.com/u/1133205?v=4)](https://github.com/dnaber-de "dnaber-de (1 commits)")[![GuillaumeSeren](https://avatars.githubusercontent.com/u/767331?v=4)](https://github.com/GuillaumeSeren "GuillaumeSeren (1 commits)")[![j-d](https://avatars.githubusercontent.com/u/1140726?v=4)](https://github.com/j-d "j-d (1 commits)")[![llaville](https://avatars.githubusercontent.com/u/364342?v=4)](https://github.com/llaville "llaville (1 commits)")[![addshore](https://avatars.githubusercontent.com/u/3308769?v=4)](https://github.com/addshore "addshore (1 commits)") ### Embed Badge ![Health badge](/badges/phar-io-version/health.svg) ``` [![Health](https://phpackages.com/badges/phar-io-version/health.svg)](https://phpackages.com/packages/phar-io-version) ``` ### Alternatives [datacreativa/laravel-presentable Create presenters for Eloquent Models 7226.0k](/packages/datacreativa-laravel-presentable) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)