通过mail（）发送CSV文件需要什么标题？

Question

有人可以提供标题列表或有关如何使用附加的csv文件发送邮件的示例吗？

我遇到了麻烦，因为在我发现的每个例子中都有不同的标题。

更新：

private function sendMail(){
    $csv = $this->createCSV();
    $subject = $this->getMessage('subject');
    $message = $this->getMessage('message');
    $headers = $this->generateHeaders();

    mail('my_mail@gmail.com', $subject, $message, $headers);

    // $this->truncate();
}

private function generateHeaders($file){
    $boundary = md5(uniqid(time()));

    $headers = 'MIME-Version: 1.0'."\r\n";
    $headers .= '"Content-Type: multipart/mixed; boundary="'.$boundary."\"\r\n";  
    $headers .= 'From: noreplay@'.$_SERVER['SERVER_NAME']."\r\n";

    $headers .= '--'.$boundary."\r\n";

    $headers .= "Content-Type: text/csv; name=\"ImageServersLogs.csv\"\r\n";
    $headers .= "Content-Transfer-Encoding: base64\r\n";
    $headers .= "Content-Disposition: attachment; filename=\"ImageServersLogs.csv\"\r\n";
    $headers .= "\r\n";
    $headers .= chunk_split(base64_encode(file_get_contents('/var/www/html/_my.csv')));

    $headers .= "\r\n--".$boundary."\r\n";  
}