PHP Manual
mailparse_msg_get_part_data
(4.1.0 - 4.1.2 only, PECL)
mailparse_msg_get_part_data -- Returns an associative array of info about the message(4.1.0 - 4.1.2 only, PECL)
mailparse_msg_get_part_data -- Returns an associative array of info about the message