如何为PHP项目创建自动代码文档？

I have a big project, that uses CakePHP. Now I would like to create a documentation for other new co-workers.

An idea was to use the existing PHPdoc comments and other comments inside the code to create an automatic documentation for a start.

1. How can I manage such a big project and How would I create a browsable HTML-Documentation?

2. How can I automatically add missing comments?
   (I use Eclipse for coding, but if it is easier in another editor I wouldn't mind.)
   There are many functions declared like this:

   # some explanation not in phpDoc
function whatever() {
....
}

It would be optimal if I could use an external Editor to edit only the phpdoc comments and they were automatically inserted in the sourcecode at the right positions.

I am not sure how much this will fulfill your requirement.

But the NetBeans IDE will help you on documentation.

For documentation guide, you can refer the below site:

Here is a guide for documentation

Please suggest if you can find better.

You can use ApiGenerator plugin. It's a Cake plugin that uses the same syntax as PhpDocumentor, and for generate the document you just have to run a shell command.

https://github.com/cakephp/api_generator