Handling Incoming Email Attachments

hello all,

I'm trying to figure out a way to manipulate incoming email attachments with
PHP. There'll be a special email address to which the emails with the
attachments would be sent, with a number specified in the subject line. What
I need to do is to grab the attachment (a photo), rename it with the number
specified in the subject line, and move it onto a specific folder on the Web
server [which will be running LAMP].

I couldn't find any online material describing how to manipulate incoming
mail attachments. Can someone give an idea?


Thanks,

Chuck Finster