How to solve the problem of downloading attachments in PHPIE

Before downloading the attachment in IE, you need to clear the cache and encode the Chinese file name with urlencode. The following is a good example. if you need it, refer to the following:

1. clear the cache before downloading attachments in IE.

2. the Chinese file name must be URL encoded.

The code is as follows:

Header ("Pragma:"); // if it is not added, IE will prompt that the target host cannot be accessed.
Header ("Cache-Control:"); // if it is not added, IE will prompt that the target host cannot be accessed.
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); // garbled characters will appear in Chinese names without urlencode in IE
Readfile ($ path_c );
Exit;

Or

The code is as follows:

Header ('content-Description: File Transfer ');
Header ('content-Type: application/octet-stream ');
Header ('content-Disposition: attachment; filename = '. urlencode (basename ($ file); // garbled characters will appear in Chinese names without urlencode in IE
Header ('content-Transfer-Encoding: binary '); // binary Transfer
Header ('expires: 0 ');
Header ('cache-Control: must-revalidate, post-check = 0, pre-check = 0'); // if no value is added, IE will prompt that the target host cannot be accessed.
Header ('pragma: public '); // If this parameter is not added, IE will prompt that the target host cannot be accessed.
Header ('content-Length: '. filesize ($ file ));
Ob_clean ();
Flush ();
Readfile ($ file );
Exit;