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[Authentication & Authorization](/categories/authentication) 4. / 5. duosecurity/duo\_universal\_php ActiveLibrary[Authentication & Authorization](/categories/authentication) duosecurity/duo\_universal\_php =============================== A PHP implementation of the Duo Universal SDK. 1.2.0(3w ago)252.0M↓22.4%13[2 issues](https://github.com/duosecurity/duo_universal_php/issues)9BSD-3-ClausePHPPHP >=7.4CI passing Since Mar 15Pushed 3w ago27 watchersCompare [ Source](https://github.com/duosecurity/duo_universal_php)[ Packagist](https://packagist.org/packages/duosecurity/duo_universal_php)[ Docs](https://duo.com/)[ RSS](/packages/duosecurity-duo-universal-php/feed)WikiDiscussions main Synced 2w ago READMEChangelog (6)Dependencies (6)Versions (9)Used By (9) Duo Universal PHP library ========================= [](#duo-universal-php-library) [![Build Status](https://github.com/duosecurity/duo_universal_php/workflows/PHP%20CI/badge.svg)](https://github.com/duosecurity/duo_universal_php/actions) This SDK allows a web developer to quickly add Duo's interactive, self-service, two-factor authentication to any PHP web login form. What's included: - `src` - The PHP Duo SDK for interacting with the Duo Universal Prompt - `example` - An example PHP application with Duo integrated - `tests` - Test cases Getting started --------------- [](#getting-started) This library requires PHP 8.2 or later To use SDK in your existing developing environment, install it from Packagist ``` composer require duosecurity/duo_universal_php ``` Once it's installed, see our developer documentation at and `sample/index.php` in this repo for guidance on integrating Duo 2FA into your web application. ### TLS 1.2 and 1.3 Support [](#tls-12-and-13-support) Duo\_universal\_php uses PHP's cURL extension and OpenSSL for TLS operations. TLS support will depend on the versions of multiple libraries: TLS 1.2 support requires PHP 5.5 or higher, curl 7.34.0 or higher, and OpenSSL 1.0.1 or higher. TLS 1.3 support requires PHP 7.3 or higher, curl 7.61.0 or higher, and OpenSSL 1.1.1 or higher. Contribute ---------- [](#contribute) To contribute, fork this repo and make a pull request with your changes when they are ready. Install the SDK from source: ``` composer install ``` Run interactive mode ``` php -a -d auto_prepend_file=vendor/autoload.php Interactive shell php > $client = new Duo\DuoUniversal\Client("IntegrationKey", "SecretKey", "api-XXXXXXXX.duosecurity.com", "https://example.com"); php > $state = $client->generateState(); php > $username = "example"; string(700) "https://api-XXXXXXXX.duosecurity.com/oauth/v1/authorize?response_type=code&client_id=DIXXXXXXXXXXXXXXXXXX&scope=openid&redirect_uri=https%3A%2F%2Fexample.com&request=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzUxMiJ9.eyJzY29wZSI6Im9wZW5pZCIsInJlZGlyZWN0X3VyaSI6Imh0dHBzOlwvXC9leGFtcGxlLmNvbSIsImNsaWVudF9pZCI6IkRJWFhYWFhYWFhYWFhYWFhYWFhYIiwiaXNzIjoiRElYWFhYWFhYWFhYWFhYWFhYWFgiLCJhdWQiOiJodHRwczpcL1wvYXBpLVhYWFhYWFhYLmR1b3NlY3VyaXR5LmNvbSIsImV4cCI6MTYxMjI5OTA3Nywic3RhdGUiOiJtYjlWalFGeDNzMEswRVpidVBJMmlCVWE4N29qbWFMTUl2VksiLCJyZXNwb25zZV90eXBlIjoiY29kZSIsImR1b191bmFtZSI6ImV4YW1wbGUiLCJ1c2VfZHVvX2NvZGVfYXR0cmlidXRlIjp0cnVlfQ.8Pr02LJd0pi6rsiAf5mvzGbf51piHysHyP5PlmnMiwNIkQ0HsYED0wECilXxsIyISz--oU528Cy7Sfebj0copg" ``` Tests ----- [](#tests) ``` ./vendor/bin/phpunit --process-isolation tests ``` Lint ---- [](#lint) To run linter ``` ./vendor/bin/phpcs --standard=.duo_linting.xml -n src/* tests ``` ### Health Score 62 — FairBetter than 99% of packages Maintenance94 Actively maintained with recent releases Popularity53 Moderate usage in the ecosystem Community35 Small or concentrated contributor base Maturity59 Maturing project, gaining track record Bus Factor2 2 contributors hold 50%+ of commits 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 ~325 days Total 7 Last Release 26d ago PHP version history (2 changes)1.0.0PHP >=7.3 1.1.0PHP >=7.4 ### Community Maintainers ![](https://www.gravatar.com/avatar/255c187591bf809c09b067f6e574faa010153e59cba417a122aec9afcb4ed582?d=identicon)[duo\_security](/maintainers/duo_security) --- Top Contributors [![AaronAtDuo](https://avatars.githubusercontent.com/u/26978047?v=4)](https://github.com/AaronAtDuo "AaronAtDuo (20 commits)")[![jeffreyparker](https://avatars.githubusercontent.com/u/593286?v=4)](https://github.com/jeffreyparker "jeffreyparker (17 commits)")[![yizshi](https://avatars.githubusercontent.com/u/61877973?v=4)](https://github.com/yizshi "yizshi (3 commits)")[![ishanvyas22](https://avatars.githubusercontent.com/u/17404636?v=4)](https://github.com/ishanvyas22 "ishanvyas22 (2 commits)")[![cisco-dmytro-hissa](https://avatars.githubusercontent.com/u/260683862?v=4)](https://github.com/cisco-dmytro-hissa "cisco-dmytro-hissa (2 commits)")[![ysyrota](https://avatars.githubusercontent.com/u/1176433?v=4)](https://github.com/ysyrota "ysyrota (2 commits)")[![mbish](https://avatars.githubusercontent.com/u/1400336?v=4)](https://github.com/mbish "mbish (1 commits)")[![xdesai](https://avatars.githubusercontent.com/u/19935687?v=4)](https://github.com/xdesai "xdesai (1 commits)")[![DuoKristina](https://avatars.githubusercontent.com/u/10851093?v=4)](https://github.com/DuoKristina "DuoKristina (1 commits)")[![andrrod3](https://avatars.githubusercontent.com/u/128161510?v=4)](https://github.com/andrrod3 "andrrod3 (1 commits)") --- Tags duomfaphp ### Code Quality TestsPHPUnit Code StylePHP\_CodeSniffer ### Embed Badge ![Health badge](/badges/duosecurity-duo-universal-php/health.svg) ``` [![Health](https://phpackages.com/badges/duosecurity-duo-universal-php/health.svg)](https://phpackages.com/packages/duosecurity-duo-universal-php) ``` ### Alternatives [google/auth Google Auth Library for PHP 1.4k302.1M240](/packages/google-auth)[ellaisys/aws-cognito Laravel Authentication using AWS Cognito (Web and API) 121269.8k1](/packages/ellaisys-aws-cognito)[rainlab/user-plugin User plugin for October CMS 11855.3k17](/packages/rainlab-user-plugin) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)