Returns header for a message (PHP 3 >= 3.0.3, PHP 4, PHP 5)
string imap_fetchheader ( resource imap_stream, int msgno [, int options] )

This function causes a fetch of the complete, unfiltered » RFC2822 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)