The SitePoint PHP blog has a new post by Jacek Barecki talking about documenting your code and some suggestions for keeping this documentation useful.

Pretty much every PHP developer writes comments along with the actual code. But the language itself doesn’t impose any rules on how to do so. You just have to wrap them around some specific tags and then you can write any content you want. So what exactly should be put in the comment blocks to keep them useful? Which parts of the code should be documented and which shouldn’t? In this article I will present some important rules which may help you in keeping your PHP code well documented and understandable.

There's three suggestions included in the article, each with a bit of explanation and a few screenshots to illustrate:

• Write code that explains itself
• Keep the balance
• Remember about the doc blocks