(PHP 4, PHP 5, PHP 7, PHP 8)
imap_rfc822_parse_headers — Parse mail headers from a string
$headers, string $default_hostname = "UNKNOWN"): stdClassGets an object of various header elements, similar to imap_header().
headersThe parsed headers data
default_hostnameThe 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.