ApiGen : ApiGen is the tool for creating professional API documentation from PHP source code, similar to discontinued phpDocumentor/phpDoc.
phpDocumentor : phpDocumentor enables you to generate documentation from your PHP source code. This documentation provides an in-depth view of your project to you, yo...
DevDocs : DevDocs combines multiple API documentations in a fast, organized, and searchable interface.
StyleDocco : StyleDocco generates documentation and style guide documents from your stylesheets.
Swagger is a powerful open source framework backed by a large ecosystem of tools that helps you design, build, document, and consume your RESTful APIs.