mb_send_mail() sends email.
Headers and message are converted and encoded according to
mb_language() setting.
mb_send_mail() is wrapper function of mail(). See
mail() for details.
to is mail addresses
send to. Multiple recipients can be specified by putting a
comma between each address in to. This parameter is not
automatically encoded.
subject is subject of
mail.
message is mail
message.
additional_headers is
inserted at the end of the header. This is typically used to
add extra headers. Multiple extra headers are separated with
a newline ("\n").
additional_parameter
is a MTA command line parameter. It is useful when setting
the correct Return-Path header when using sendmail.
成功回傳TRUE失敗回傳FALSE。
See also mail(),
mb_encode_mimeheader(), and
mb_language().