I'm quickly losing faith in these tests. This one is bloody useless, *especially* if you've coded a lot of PHP! Some of the questions are in the context of something you would *never* do if you've coded a lot of PHP! For example, you would *never* take a password over an unencrypted connection!
Further, it fails to address even the most fundamental parts of PHP, like conditional looping and very basic syntax.
PS - where the hell are the answers? Why can I not see why I was wrong?
I suspect the reason you can't see the answers is because they can be retaken. As you said in the other post, the important thing is knowing how to look things up, anyway. These quizes are not for practical use - if you think the networking with questions of header size is bad, you just haven't seen the C part which asks about the type of expressions, but shows statements with no effects.