(PHP 4, PHP 5)
imap_rfc822_parse_headers — Parse mail headers from a string
$headers
   [, string $defaulthost = "UNKNOWN"
  ] )Gets an object of various header elements, similar to imap_header().
headers
     The parsed headers data
defaulthost
     The default host name
Returns an object similar to the one returned by imap_header(), except for the flags and other properties that come from the IMAP server.