imap_setflag_full Sets flags on messages boolimap_setflag_full resourcestream stringsequence stringflag stringoptions This function causes a store to add the specified flag to the flags set for the messages in the specified sequence. The flags which you can set are "\\Seen", "\\Answered", "\\Flagged", "\\Deleted", and "\\Draft" (as defined by RFC2060). The options are a bit mask with one or more of the following: ST_UID The sequence argument contains UIDs instead of sequence numbers