PHP IE Download attachment problem solving method

  in IE to download the attachment before you empty the cache, Chinese file name to use UrlEncode encoding, there is a good example, the need for friends can refer to the following

Key:    1, empty the cache before downloading the attachment in IE.     2, Chinese file name to be encoded with UrlEncode.   Code as follows: Header ("Pragma:"); If not, IE will prompt the target host can not access   Header ("Cache-control:"); If not, IE will prompt the target host to be unable to access   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 ($filename)); In IE without urlencode Chinese name will appear garbled   ReadFile ($path _c);  exit;    or   code as follows: Header (' Content-description : File Transfer ');  header (' Content-type:application/octet-stream ');  header (' Content-disposition: attachment; Filename= '. UrlEncode (basename ($file))); In IE without urlencode Chinese name will appear garbled   header (' content-transfer-encoding:binary '); Binary transmission   Header (' expires:0 ');  header (' Cache-control:must-revalidate, post-check=0, pre-check=0 '); If not, IE will prompt the target host can not access   header (' pragma:public '); If not, IE will prompt the target host to be unable to access   header (' ConTent-length: '. FileSize ($file));  Ob_clean ();  flush ();  ReadFile ($file);  exit;