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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. 1.1.2(3mo ago)251.3M—3.5%13[2 issues](https://github.com/duosecurity/duo_universal_php/issues)9BSD-3-ClausePHPPHP >=7.4CI passing Since Mar 15Pushed 3mo ago28 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 1mo ago READMEChangelog (5)Dependencies (3)Versions (8)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 57 — FairBetter than 98% of packages Maintenance78 Regular maintenance activity Popularity52 Moderate usage in the ecosystem Community33 Small or concentrated contributor base Maturity57 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 ~357 days Recently: every ~327 days Total 6 Last Release 103d 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 (19 commits)")[![jeffreyparker](https://avatars.githubusercontent.com/u/593286?v=4)](https://github.com/jeffreyparker "jeffreyparker (15 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)")[![ysyrota](https://avatars.githubusercontent.com/u/1176433?v=4)](https://github.com/ysyrota "ysyrota (2 commits)")[![xdesai](https://avatars.githubusercontent.com/u/19935687?v=4)](https://github.com/xdesai "xdesai (1 commits)")[![mbish](https://avatars.githubusercontent.com/u/1400336?v=4)](https://github.com/mbish "mbish (1 commits)")[![andrrod3](https://avatars.githubusercontent.com/u/128161510?v=4)](https://github.com/andrrod3 "andrrod3 (1 commits)")[![DuoKristina](https://avatars.githubusercontent.com/u/10851093?v=4)](https://github.com/DuoKristina "DuoKristina (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 1.4k272.7M162](/packages/google-auth)[thenetworg/oauth2-azure Azure Active Directory OAuth 2.0 Client Provider for The PHP League OAuth2-Client 2509.6M48](/packages/thenetworg-oauth2-azure)[stevenmaguire/oauth2-keycloak Keycloak OAuth 2.0 Client Provider for The PHP League OAuth2-Client 2275.9M27](/packages/stevenmaguire-oauth2-keycloak)[robsontenorio/laravel-keycloak-guard 🔑 Simple Keycloak Guard for Laravel 5161.1M3](/packages/robsontenorio-laravel-keycloak-guard)[patrickbussmann/oauth2-apple Sign in with Apple OAuth 2.0 Client Provider for The PHP League OAuth2-Client 1132.5M6](/packages/patrickbussmann-oauth2-apple)[wp-graphql/wp-graphql-jwt-authentication JWT Authentication for WPGraphQL 361118.4k1](/packages/wp-graphql-wp-graphql-jwt-authentication) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)