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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)7.5k743.4M—8.1%18[3 issues](https://github.com/phar-io/version/issues)[1 PRs](https://github.com/phar-io/version/pulls)20BSD-3-ClausePHPPHP ^7.2 || ^8.0 Since Mar 3Pushed 2y 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 1mo ago READMEChangelog (9)DependenciesVersions (15)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 58 — FairBetter than 98% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity83 Widely adopted with strong download metrics Community36 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 1548d 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 [phinq/phinq A library for querying data and performing statistical operations in an logical, object-oriented fashion. 108.8k](/packages/phinq-phinq) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)