php man page for imap_fetchheader

IMAP_FETCHHEADER(3)							 1						       IMAP_FETCHHEADER(3)

imap_fetchheader - Returns header for a message

SYNOPSIS
       string imap_fetchheader (resource  $imap_stream, int  $msg_number, [int	$options])

DESCRIPTION
	This function causes a fetch of the complete, unfiltered RFC2822 format header of the specified message.

PARAMETERS
	      o $
		imap_stream -An IMAP stream returned by imap_open(3).

	      o $msg_number
		- The message number

	      o $options
		- The possible $options are:

		     o FT_UID - The $msgno argument is a UID

		     o FT_INTERNAL - The return string is in "internal" format, without any attempt to canonicalize to CRLF newlines

		     o 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)

RETURN VALUES
	Returns the header of the specified message as a text string.

SEE ALSO
       imap_fetch_overview(3).

PHP Documentation Group 												       IMAP_FETCHHEADER(3)