(PHP 4 >= 4.0.7, PECL mailparse:0.9-2.1.1)
mailparse_msg_parse — Incrementally parse data into buffer
Incrementally parse data into the supplied mime mail resource.
This function allow you to stream portions of a file at a time, rather than read and parse the whole thing.
A valid MIME resource.
如果成功则返回 TRUE,失败则返回 FALSE。