How to: Documentation
*Libraries for generating project documentation.*

* [APIGen](https://github.com/apigen/apigen) - Another API documentation generator.
* [daux.io](https://github.com/dauxio/daux.io) - A documentation generator that uses Markdown files.
* [phpDocumentor](https://phpdoc.org/) - A documentation generator.
* [phpDox](https://phpdox.net/) - A documentation generator for PHP projects (that is not limited to API documentation).
* [zircote/swagger-php](https://github.com/zircote/swagger-php) - Generate OpenAPI documentation for your RESTful API.