跨浏览器下PHP下载文件名中的中文乱码问题的解决方法

3. $ua = $_SERVER["HTTP_USER_AGENT"];

4. $filename = "中文 文件名.txt";

5. $encoded_filename = urlencode($filename);
6. $encoded_filename = str_replace("+", "%20", $encoded_filename);

7. header('Content-Type: application/octet-stream');

8. if (preg_match("/MSIE/", $ua)) {

9. header('Content-Disposition: attachment; filename="' . $encoded_filename . '"');
10. } else if (preg_match("/Firefox/", $ua)) {
11. header('Content-Disposition: attachment; filename*="utf8\'\'' . $filename . '"');
12. } else {
13. header('Content-Disposition: attachment; filename="' . $filename . '"');
14. }

15. print 'ABC';

16. ?>

上面是一个比较通用的解决方案（据说xp+IE7会有问题，未验证）。

这个问题是在使用CI-Excel-Generation-Library时遇到的，解决办法：

3. private function set_headers() {

4. $ua = $_SERVER["HTTP_USER_AGENT"];
5. $filename = $this->filename . ".xls";
6. $encoded_filename = urlencode($filename);
7. $encoded_filename = str_replace("+", "%20", $encoded_filename);

8. header("Pragma: public");

9. header("Expires: 0");
10. header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
11. header("Content-Type: application/force-download");
12. header("Content-Type: application/octet-stream");

13. //header("Content-Type: application/vnd.ms-excel;charset=UTF-8");

14. header("Content-Type: application/download");;
15. if (preg_match("/MSIE/", $ua)) {
16. header('Content-Disposition: attachment; filename="' . $encoded_filename . '"');
17. } else if (preg_match("/Firefox/", $ua)) {
18. header('Content-Disposition: attachment; filename*="utf8\'\'' . $filename . '"');
19. } else {
20. header('Content-Disposition: attachment; filename="' . $filename . '"');
21. }
22. header("Content-Transfer-Encoding: binary ");
23. }
24. ?>