I'm trying to make a message board I run parse out MIME messages and deal with as many different content types as I can work out how to do. I've looked at the oft-linked Zend tutorial, and I've looked at some of the many RFCs, but the first doesn't give me enough information and the latter give me so much I (a) can't digest it all and (b) can't tell whether or not I've found all the things I need. Anyone know a good reference that stands partway between them? I'm particularly after documentation of the multipart/* types and the available encodings.
Yes, it is PHP. There is, of course, a module or two (though I think only two) with this sort of functionality for PHP. But where there's a standard to be complied with, I try to make sure I understand that standard pretty thoroughly. 137 pages of RFCs are a lot to digest, though, so a pre-chewed version would probably go a long way toward making me feel like there was a chance that my implementation was right.