PHPackages causal/dgc - 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. causal/dgc ActiveLibrary[Utility & Helpers](/categories/utility) causal/dgc ========== Library to decode Digital Green Certificates as defined by the eHealth Network 1.4(4y ago)121MITPHPPHP >= 7.2.0, <= 7.4.99 Since Aug 30Pushed 4y ago1 watchersCompare [ Source](https://github.com/xperseguers/digital-green-certificate)[ Packagist](https://packagist.org/packages/causal/dgc)[ RSS](/packages/causal-dgc/feed)WikiDiscussions main Synced 3w ago READMEChangelogDependencies (2)Versions (6)Used By (0) Digital Green Certificate (DGC) =============================== [](#digital-green-certificate-dgc) *DGC* is a PHP library that decodes Digital Green Certificates. In short, it decodes COVID-19 certificates. Install ------- [](#install) Install with [composer](https://getcomposer.org/). ``` $ composer require causal/dgc ``` Usage ----- [](#usage) ``` $decoder = new \Causal\DGC\Decoder(); // The string as embedded in the QR code of the certificate (e.g., you can use https://qrafter.com/) $input = 'HC1:NCFOXNYTSFDHJI89.O%26V$L.BUTRDUV...'; // Extract issuer, issuing date, expiring date, type of vaccine, manufacturer, etc. $data = $decoder->decodeFromQR($input); ``` ``` { 1: "DE", 4: 1643356073, 6: 1622316073, -260: { 1: { v: [ { ci: "URN:UVCI:01DE/IZ12345A/5CWLU12RNOB9RXSEOP6FG8#W", co: "DE", dn: 2, dt: "2021-05-29", is: "Robert Koch-Institut", ma: "ORG-100031184", mp: "EU/1/20/1507", sd: 2, tg: "840539006", vp: "1119349007" } ], dob: "1964-08-12", nam: { fn: "Mustermann", gn: "Erika", fnt: "MUSTERMANN", gnt: "ERIKA" }, ver: "1.0.0" } } } ``` You may then prettify the data so that they are more human-readable: ``` // Basically this returns the exact same data you read in the official Swiss app "Covid Cert" $humanReadableData = $decoder->prettify($data); ``` ``` { issuer: "DE", issuingDate: "2021-05-29T21:21:13+02:00", expiringDate: "2022-01-28T08:47:53+01:00", certificate: { type: "vaccination", person: { familyName: "Mustermann", givenName: "Erika", familyNameTransliterated: "MUSTERMANN", givenNameTransliterated: "ERIKA", dateOfBirth: "1964-08-12" }, info: { singleDoses: 2, diseaseOrAgentTargeted: "COVID-19", vaccineType: "SARS-CoV2 mRNA vaccine", product: "COVID-19 Vaccine Moderna", manufacturer: "Moderna Biotech Spain S.L.", date: "2021-05-29", country: "DE", issuer: "Robert Koch-Institut", id: "URN:UVCI:01DE/IZ12345A/5CWLU12RNOB9RXSEOP6FG8#W" } } } ``` Types of Certificates --------------------- [](#types-of-certificates) Following types of certificates are supported: - Vaccination certificate - Test certificate - Recovery certificate Disclaimer ---------- [](#disclaimer) - There is currently NO CHECK of the digital signature (it is not clear at the moment whether public keys of the various issuers are available to anyone). - Human-readable conversion is based on European data mapping on 2021/08/30. - This library is provided as-is, use it at your own risk! References ---------- [](#references) - [https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-certificates\_v3\_en.pdf](https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-certificates_v3_en.pdf) - [https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-certificates\_dt-specifications\_en.pdf](https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-certificates_dt-specifications_en.pdf) - License ------- [](#license) The MIT License (MIT). Please see [License File](LICENSE) for more information. ### Health Score 25 — LowBetter than 36% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity8 Limited adoption so far Community7 Small or concentrated contributor base Maturity55 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 ~2 days Total 5 Last Release 1750d ago ### Community Maintainers ![](https://avatars.githubusercontent.com/u/646805?v=4)[Xavier Perseguers](/maintainers/xperseguers)[@xperseguers](https://github.com/xperseguers) --- Top Contributors [![xperseguers](https://avatars.githubusercontent.com/u/646805?v=4)](https://github.com/xperseguers "xperseguers (13 commits)") ### Embed Badge ![Health badge](/badges/causal-dgc/health.svg) ``` [![Health](https://phpackages.com/badges/causal-dgc/health.svg)](https://phpackages.com/packages/causal-dgc) ``` ### Alternatives [civicrm/civicrm-core Open source constituent relationship management for non-profits, NGOs and advocacy organizations. 749284.3k35](/packages/civicrm-civicrm-core)[symplify/vendor-patches Generate vendor patches for packages with single command 1907.2M35](/packages/symplify-vendor-patches)[mautic/core Mautic Open Source Distribution 9.8k2.6k9](/packages/mautic-core)[farmos/farmos A web-based farm record keeping application. 1.3k7.0k1](/packages/farmos-farmos)[ec-europa/toolkit Toolkit packaged for Drupal projects based on Robo. 39250.0k28](/packages/ec-europa-toolkit)[vardot/varbase-project Project template for Varbase distribution. 5162.4k](/packages/vardot-varbase-project) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)