Busting Some Myths Concerning robots.txt

After all these years, there still seems to be quite a lot of confusion and misinformation floating around about "robots.txt" files, how they work, and what they do, so I'd like to go some way towards clearing up that confusion here.

Zend_Session Overrides php.ini Settings

This post concerns some curious behaviour in Zend_Session. We spent about a day of developer time tracking this down, and I'm still a bit puzzled about it. It doesn't appear anywhere obvious in the documentation, and I haven't found a great deal on the web about it, so maybe this will save somebody some time, if nothing else.