imap_fetchheaderPHP ManualPrevNextimap_fetchheaderimap_fetchheader -- Returns header for a messageDescriptionstring imap_fetchheader(int imap_stream, int msgno, int flags); This function causes a fetch of the complete, unfiltered RFC822 format header of the specified message as a text string and returns that text string. The options are: FT_UID          The msgno argument is a UID  FT_INTERNAL     The return string is in "internal" format,                 without any attempt to canonicalize to CRLF                 newlines FT_PREFETCHTEXT The RFC822.TEXT should be pre-fetched at the                 same time.  This avoids an extra RTT on an                 IMAP connection if a full message text is                 desired (e.g. in a "save to local file"                 operation)        PrevHomeNextimap_sortUpimap_uid