... PHP 3 <= 3.0.18, PHP 4 >= 4.0.0) imap_fetchstructure -- Read the structure of a particular message . object imap_fetchstructure ( int imap_stream, int msg_number [, int flags]) . ... The returned object includes the envelope, internal date, size, flags and body structure along with a similar object for each mime attachement. ... TRUE if there is a subtype string . ... An array of objects identical in structure to the top-level object, each of which corresponds to a MIME body part. ...