發送帶有附件的電子郵件，顯示格式為PHP

Question

這是代碼用來發送帶有附件的doc文件的電子郵件，正在接收電子郵件，但是電子郵件中的內容以編碼文本格式顯示

<?php

$to = $_POST['to'];
$from = $_POST['from'];
$subject = $_POST['subject'];
$message = $_POST['message'];


$fileatt = $_FILES['upload_file']['tmp_name'];
$fileatt_type = $_FILES['upload_file']['type'];//application/msword
$fileatt_name = $_FILES['upload_file']['name'];

$headers = "From: $from";

if (is_uploaded_file($fileatt)) {

$file = fopen($fileatt,'rb');
$data = fread($file,filesize($fileatt));
fclose($file);


$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";

$headers .= "\nMIME-Version: 1.0\n" .
"Content-Type: multipart/mixed;\n" .
" boundary=\"{$mime_boundary}\"";


$message = "This is a multi-part message in MIME format.\n\n" .
"--{$mime_boundary}\n" .
"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";


$data = chunk_split(base64_encode($data));


$message .= "--{$mime_boundary}\n" .
"Content-Type: {$fileatt_type};\n" .
" name=\"{$fileatt_name}\"\n" .
"Content-Disposition: attachment;\n" .
" filename=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mime_boundary}--\n";
}

mail($to, $subject, $message, $headers);
?>

收到的電子郵件是這樣的

message:This is a multi-part message in MIME format. --==Multipart_Boundary_x788f8ac40875c8c7a6540be6654be9c8x Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit --==Multipart_Boundary_x788f8ac40875c8c7a6540be6654be9c8x Content-Type: application/msword; name="File_name.doc" Content-Disposition: attachment; filename="File_name.doc" Content-Transfer-Encoding: base64 s pcEAW4AJBAAA+BK/AAAAAAAAEAAAAAAACAAAMhMAAA4AYmpiaqz6rPoAAAAAAAAAAAAAAAAAAAAA AAAJBBYAuEAAAM6QAQDOkAEAFwsAAAAAAAAaAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD//w8AAAAA AAAAAAD//w8AAAAAAAAAAAD//w8AAAAAAAAAAAAAAAAAAAAAALcAAAAAAEgHAAAAAAAASAcAAIsU AAAAAAAAixQAAAAAAACLFAAAAAAAAIsUAAAAAAAAixQAADQAAAAAAAAAAAAAAP////8AAAAAvxQA AAAAAAC/FAAAAAAAAL8UAABoAAAAJxUAAEwAAABzFQAAbAAAAL8UAAAAAAAAj0UAAMYCAADfFQAA FgAAAPUVAAAQAAAABRYAAAAAAAAFFgAAAAAAAAUWAAAAAAAAJBcAACYAAABKFwAADAAAAFYXAAAI AAAADkUAAAIAAAAQRQAAAAAAABBFAAAAAAAAEEUAAAAAAAAQRQAAAAAAABBFAAAAAAAAEEUAACQA AABVSAAAogIAAPdKAAA8AAAANEUAABUAAAAAAAAAAAAAAAAAAAAAAAAAixQAAAAAAABeFwAAAAAA AAAAAAAAAAAAAAAAAAAAAAAkFwAAAAAAACQXAAAAAAAAXhcAAAAAAABeFwAAAAAAADRFAAAAAAAA AAAAAAAAAACLFAAAAAAAAIsUAAAAAAAABRYAAAAAAAAAAAAAAAAAAAUWAAAfAQAASUUAABYAAADc GgAAAAAAANwaAAAAAAAA3BoAAAAAAABeFwAADAEAAIsUAAAAAAAABRYAAAAAAACLFAAAAAAAAAUW AAAAAAAADkUAAAAAAAAAAAAAAAAAANwaAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAXhcAAAAAAAAORQAAAAAAAAAAAAAAAAAA3BoAAAAAAADcGgAA pgEAAJY+AAAwAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAKkIAAAAAAAAFFgAAAAAAAP////8AAAAA0NGIQpry zAEAAAAAAAAAAL8UAAAAAAAAahgAACIAAADGPwAAJAAAAAAAAAAAAAAA+kQAABQAAABfRQAAMAAA AI9FAAAAAAAA6j8AAEACAAAzSwAAAAAAAIwYAABQAgAAM0sAAEgAAAAqQgAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAADNLAAAAAAAAAAAAAAAAAACLFAAAAAAAACpCAADQAgAAXhcAAAAAAABeFwAAAAAAANwa AAAAAAAAXhcAAAAAAABeFwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXhcA AAAAAABeFwAAAAAAAF4XAAAAAAAANEUAAAAAAAA0RQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA  AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAA== --==Multipart_Boundary_x788f8ac40875c8c7a6540be6654be9c8x--

headers:From:  MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="==Multipart_Boundary_x788f8ac40875c8c7a6540be6654be9c8x"

任何人都可以幫我提供完美的代碼，謝謝

Answer 1

真正調試問題而不是猜測，自己找出原因：

1. 將您生成的消息內容轉儲到文本文件中。
2. 將您在電子郵件客戶端中收到的所有有效消息內容轉儲到文件中（消息源代碼）。
3. 比較兩個文件，並從差異中獲取答案。

確實有效。

Answer 2

PHP不支持默認的utf-8編碼，您需要將下面給出的相關編碼功能傳遞給標頭

Replace your code 

Content-Type: text/plain; charset=\"iso-8859-1\"\n

to

"Content-Type:text/html;charset=utf-8"