通过html表单发送文件附件会向电子邮件正文发送大量垃圾文本

Question

我正在尝试上传一个html文件，用php通过电子邮件发送。以下是代码片段：

$attachment = chunk_split(base64_encode(file_get_contents($_FILES['file']['tmp_name'])));
        $filename = $_FILES['file']['name'];
        $boundary =md5(date('r', time())); 
        $headers = "From: [e-mail]-To: [e-mail]";
        $headers .= "rnMIME-Version: 1.0rnContent-Type: multipart/mixed; boundary="_1_$boundary"";
        $body="This is a multi-part message in MIME format.
        --_1_$boundary
        Content-Type: multipart/alternative; boundary="_2_$boundary"
        --_2_$boundary
        Content-Type: text/plain; charset="iso-8859-1"
        Content-Transfer-Encoding: 7bit
        test
        --_2_$boundary--
        --_1_$boundary
        Content-Type: application/octet-stream; name="$filename" 
        Content-Transfer-Encoding: base64 
        Content-Disposition: attachment 
        $attachment
        --_1_$boundary--";
        mail('[e-mail]', 'Leidige stillinger', $body, $headers) or die("NO");

我收到了电子邮件，但有一堆垃圾短信，看起来$边界会产生大量垃圾短信。或者我做错了，首先我必须将文件上传到服务器中的某个位置，然后通过电子邮件

Answer 1

我一直喜欢手动滚动MIME编码，就像您正在做的那样，而不是使用库。你很接近。试试这个：

    // to, from, subject, message body, attachment filename, etc.
    $to = "[e-mail]";
    $from = "[e-mail]";
    $subject = "subject";
    $message = "this is the message body";
    $filename="/home/user/file.pdf";  //location of file - path and filename
    $fname="file.jpeg";               //name of file for display purposes 
    $headers = "From: $from"; 
    // boundary 
    $semi_rand = md5(time()); 
    $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; 
    // headers for attachment 
    $headers .= "nMIME-Version: 1.0n" . "Content-Type: multipart/mixed;n" . " boundary="{$mime_boundary}""; 
    // multipart boundary 
    $message = "This is a multi-part message in MIME format.nn" . "--{$mime_boundary}n" . "Content-Type: text/plain; charset="iso-8859-1"n" . "Content-Transfer-Encoding: 7bitnn" . $message . "nn"; 
    $message .= "--{$mime_boundary}n";
    // preparing attachments            
        $file = fopen($filename,"rb");
        $data = fread($file,filesize($fname));
        fclose($file);
        $data = chunk_split(base64_encode($data));
        $message .= "Content-Type: {"application/octet-stream"};n" . " name="$fname"n" . 
        "Content-Disposition: attachment;n" . " filename="$fname"n" . 
        "Content-Transfer-Encoding: base64nn" . $data . "nn";
        $message .= "--{$mime_boundary}n";

    $ok = @mail($to, $subject, $message, $headers, "-f " . $from);