PHPackages semsol/arc2 - PHPackages - PHPackages [Skip to content](#main-content)[PHPackages](/)[Directory](/)[Categories](/categories)[Trending](/trending)[Leaderboard](/leaderboard)[Changelog](/changelog)[Analyze](/analyze)[Collections](/collections)[Log in](/login)[Sign up](/register) 1. [Directory](/) 2. / 3. [Utility & Helpers](/categories/utility) 4. / 5. semsol/arc2 ActiveLibrary[Utility & Helpers](/categories/utility) semsol/arc2 =========== ARC2 is a PHP library for working with RDF. It also provides a MySQL-based triplestore with SPARQL support. 3.1.0(1y ago)334250.0k↑72.6%91[39 issues](https://github.com/semsol/arc2/issues)15GPL-2.0-or-laterPHPPHP ^8.0.0CI passing Since Nov 13Pushed 1mo ago24 watchersCompare [ Source](https://github.com/semsol/arc2)[ Packagist](https://packagist.org/packages/semsol/arc2)[ Docs](https://github.com/semsol/arc2)[ RSS](/packages/semsol-arc2/feed)WikiDiscussions master Synced 1mo ago READMEChangelog (7)Dependencies (2)Versions (19)Used By (15) ARC2 ==== [](#arc2) [![Latest Stable Version](https://camo.githubusercontent.com/d171330420e8f4e86de79e5515ebdb90accaf0b269a9686cc736a4c718dbed6a/68747470733a2f2f706f7365722e707567782e6f72672f73656d736f6c2f617263322f762f737461626c652e737667)](https://packagist.org/packages/semsol/arc2)[![Total Downloads](https://camo.githubusercontent.com/ce03e9d3137eed96bf7e6a04beebf6a9433c762bfe1b6cbfe4ed6f9a54c0944e/68747470733a2f2f706f7365722e707567782e6f72672f73656d736f6c2f617263322f646f776e6c6f6164732e737667)](https://packagist.org/packages/semsol/arc2)[![Latest Unstable Version](https://camo.githubusercontent.com/159f29522cece746f9d57cc5a8ec9ff6766041f7499d91b3d7150e68bd766c31/68747470733a2f2f706f7365722e707567782e6f72672f73656d736f6c2f617263322f762f756e737461626c652e737667)](https://packagist.org/packages/semsol/arc2)[![License](https://camo.githubusercontent.com/7e111f3465bce84f8cc7a448d8a6bee5bff39a6af1b7a874a93b881fb4c3accc/68747470733a2f2f706f7365722e707567782e6f72672f73656d736f6c2f617263322f6c6963656e73652e737667)](https://packagist.org/packages/semsol/arc2) ARC2 is a PHP 8.4+ library for working with RDF. It also provides a MySQL-based triplestore with SPARQL support. Older versions of PHP may work, but are not longer tested. Documentation ------------- [](#documentation) For the documentation, see the [Wiki](https://github.com/semsol/arc2/wiki#core-documentation). To quickly get started, see the [Getting started guide](https://github.com/semsol/arc2/wiki/Getting-started-with-ARC2). Installation ------------ [](#installation) Requires **PHP 8.4**+. Package available on [Composer](https://packagist.org/packages/semsol/arc2). You should use Composer for installation: ``` composer require semsol/arc2:^3 ``` Further information about Composer usage can be found [here](https://getcomposer.org/doc/01-basic-usage.md#autoloading), for instance about autoloading ARC2 classes. RDF triple store ---------------- [](#rdf-triple-store) ### SPARQL support [](#sparql-support) Please have a look into [SPARQL-support.md](doc/SPARQL-support.md) to see which SPARQL 1.0/1.1 features are currently supported. Internal information for developers ----------------------------------- [](#internal-information-for-developers) Please have a look [here](doc/developer.md) to find information about maintaining and extending ARC2 as well as our docker setup for local development. ### Health Score 61 — FairBetter than 99% of packages Maintenance62 Regular maintenance activity Popularity56 Moderate usage in the ecosystem Community40 Growing community involvement Maturity77 Established project with proven stability Bus Factor1 Top contributor holds 58.2% 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 ~268 days Recently: every ~407 days Total 17 Last Release 640d ago Major Versions 2.5.1 → 3.0.02023-09-13 PHP version history (3 changes)v2.1.0PHP >=5.3.0 2.5PHP >=7.2 3.0.0PHP ^8.0.0 ### Community Maintainers ![](https://www.gravatar.com/avatar/27453c4568d44b2f983437011e521c5c6c702002c055d1c01bffc66c581b3fca?d=identicon)[bengee](/maintainers/bengee) --- Top Contributors [![k00ni](https://avatars.githubusercontent.com/u/381727?v=4)](https://github.com/k00ni "k00ni (139 commits)")[![bnowack](https://avatars.githubusercontent.com/u/893242?v=4)](https://github.com/bnowack "bnowack (59 commits)")[![cgutteridge](https://avatars.githubusercontent.com/u/510699?v=4)](https://github.com/cgutteridge "cgutteridge (5 commits)")[![semsol](https://avatars.githubusercontent.com/u/429517?v=4)](https://github.com/semsol "semsol (5 commits)")[![ailintom](https://avatars.githubusercontent.com/u/24455000?v=4)](https://github.com/ailintom "ailintom (4 commits)")[![nkos-eu](https://avatars.githubusercontent.com/u/45455044?v=4)](https://github.com/nkos-eu "nkos-eu (4 commits)")[![pietercolpaert](https://avatars.githubusercontent.com/u/347073?v=4)](https://github.com/pietercolpaert "pietercolpaert (4 commits)")[![olberger](https://avatars.githubusercontent.com/u/309225?v=4)](https://github.com/olberger "olberger (3 commits)")[![patrickmcsweeney](https://avatars.githubusercontent.com/u/1313219?v=4)](https://github.com/patrickmcsweeney "patrickmcsweeney (2 commits)")[![samuell](https://avatars.githubusercontent.com/u/125003?v=4)](https://github.com/samuell "samuell (2 commits)")[![Girgias](https://avatars.githubusercontent.com/u/7906688?v=4)](https://github.com/Girgias "Girgias (1 commits)")[![jonphipps](https://avatars.githubusercontent.com/u/12743?v=4)](https://github.com/jonphipps "jonphipps (1 commits)")[![CloCkWeRX](https://avatars.githubusercontent.com/u/365751?v=4)](https://github.com/CloCkWeRX "CloCkWeRX (1 commits)")[![MattiSG](https://avatars.githubusercontent.com/u/222463?v=4)](https://github.com/MattiSG "MattiSG (1 commits)")[![milesw](https://avatars.githubusercontent.com/u/289555?v=4)](https://github.com/milesw "milesw (1 commits)")[![claudiu-cristea](https://avatars.githubusercontent.com/u/473868?v=4)](https://github.com/claudiu-cristea "claudiu-cristea (1 commits)")[![royopa](https://avatars.githubusercontent.com/u/442991?v=4)](https://github.com/royopa "royopa (1 commits)")[![coreation](https://avatars.githubusercontent.com/u/361244?v=4)](https://github.com/coreation "coreation (1 commits)")[![danmichaelo](https://avatars.githubusercontent.com/u/434495?v=4)](https://github.com/danmichaelo "danmichaelo (1 commits)")[![craigdietrich](https://avatars.githubusercontent.com/u/393546?v=4)](https://github.com/craigdietrich "craigdietrich (1 commits)") --- Tags RDFsparql ### Code Quality TestsPHPUnit Code StylePHP CS Fixer ### Embed Badge ![Health badge](/badges/semsol-arc2/health.svg) ``` [![Health](https://phpackages.com/badges/semsol-arc2/health.svg)](https://phpackages.com/packages/semsol-arc2) ``` ### Alternatives [easyrdf/easyrdf EasyRdf is a PHP library designed to make it easy to consume and produce RDF. 62231.5M42](/packages/easyrdf-easyrdf)[sweetrdf/easyrdf EasyRdf is a PHP library designed to make it easy to consume and produce RDF. 261.3M11](/packages/sweetrdf-easyrdf)[benestar/asparagus SPARQL abstraction layer for PHP 1554.9k5](/packages/benestar-asparagus)[bordercloud/sparql Lib PHP very easy for SPARQL 1.1 27100.4k](/packages/bordercloud-sparql) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)