目前这是标题的样子.如果我想添加密送,我该怎么办？谢谢您的帮助.下面是代码的样子.
// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);
?>