 
<?php 
$file_name = urlencode($_REQUEST['filename']); 
header("Pragma: public"); header("Expires: 0"); 
header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
header("Content-Type: application/force-download"); 
header('Content-Type: application/vnd.ms-excel; charset=utf-8'); 
header("Content-Transfer-Encoding: binary"); 
header('Content-Disposition: attachment; filename='.$file_name); 
echo stripslashes($_REQUEST['content']); 
?> 

解決PHP Header下載文件在IE文件名中文亂碼有兩種常見的，一種是是把頁面編碼改成utf8，另一種是對中文url進入urlencode編碼就可以解決了。
解決方案一(我的頁面是utf-8編碼)：

復制代碼代碼如下:

 
$filename = "中文.txt"; 
$ua = $_SERVER["HTTP_USER_AGENT"]; 
$encoded_filename = urlencode($filename); 
$encoded_filename = str_replace("+", "%20", $encoded_filename); 
header('Content-Type: application/octet-stream'); 
if (preg_match("/MSIE/", $ua)) { 
header('Content-Disposition: attachment; filename="' . $encoded_filename . '"'); 
} else if (preg_match("/Firefox/", $ua)) { 
header('Content-Disposition: attachment; filename*="utf8''' . $filename . '"'); 
} else { 
header('Content-Disposition: attachment; filename="' . $filename . '"'); 
} 

解決方法二

將文件名先urlencode一下再放入header，如下。
代碼如下:

復制代碼代碼如下:

 <?php 
$file_name = urlencode($_REQUEST['filename']); 
header("Pragma: public"); header("Expires: 0"); 
header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
header("Content-Type: application/force-download"); 
header('Content-Type: application/vnd.ms-excel; charset=utf-8'); 
header("Content-Transfer-Encoding: binary"); 
header('Content-Disposition: attachment; filename='.$file_name); 
echo stripslashes($_REQUEST['content']); 
?> 

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