OAuth2-server is a standards compliant PHP OAuth 2.0 authorization server that makes implementing OAuth 2.0 trivial.
The tool solves the problem of securing APIs and managing client authentication by providing a complete, specification-compliant OAuth 2.0 server implementation. It handles the complexity of OAuth 2.0 by supporting multiple grant types out of the box: authorization code, client credentials, device authorization, implicit, refresh, and resource owner password credentials grants. The implementation follows relevant RFCs including the core OAuth 2.0 specification, bearer token usage, JSON Web Tokens, proof key for public clients, and device authorization grants. All HTTP messages must be PSR-7 compliant, ensuring interoperability with other PHP packages and frameworks.
Developers should choose this tool if they need to add OAuth 2.0 authentication to a PHP API or application. It suits projects that require standards-compliant token-based security without building authorization infrastructure from scratch. The tool works with modern PHP versions and integrates with several popular frameworks through community packages, including Laravel Passport, Symfony, Drupal, CakePHP, Mezzio, and CodeIgniter.
The project maintains rigorous quality standards through multiple continuous integration systems including Github Actions, Scrutinizer, and StyleCI. The codebase is tested with PHPUnit and enforced for code style consistency. The project welcomes contributions and maintains documented guidelines for both contributing and community conduct.
