重点：

1、在IE中下载附件之前要清空缓存。

2、中文文件名要用urlencode编码。

复制代码 代码如下:

Header("Pragma: "); //不加的话，IE中会提示目标主机无法访问

Header("Cache-Control: "); //不加的话，IE中会提示目标主机无法访问

Header("content-type: $type");

Header("accept-ranges: bytes");

Header("Content-Transfer-Encoding:base64");

Header("accept-length: " . filesize($path_c));

Header("content-disposition: attachment; filename=" .urlencode($filename)); //IE中不用urlencode中文名会出现乱码

readfile($path_c);

exit;

或

复制代码 代码如下:

header('Content-Description: File Transfer');

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

header('Content-Disposition: attachment; filename='.urlencode(basename($file) )); //IE中不用urlencode中文名会出现乱码

header('Content-Transfer-Encoding: binary'); //二进制传输

header('Expires: 0');

header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); //不加的话，IE中会提示目标主机无法访问

header('Pragma: public'); //不加的话，IE中会提示目标主机无法访问

header('Content-Length: ' . filesize($file));

ob_clean();

flush();

readfile($file);

exit;