Sample code for php file download (preventing garbled Chinese file names)

/**
* PHP file download code, Chinese without garbled characters
* by bbs.it-home.org
*/
 $file = "/tmp/中文名.tar.gz";

 $filename = basename($file);

 header(" Content-type: application/octet-stream");

 //Processing Chinese file names
 $ua = $_SERVER["HTTP_USER_AGENT"];
 $encoded_filename = urlencode($filename);
 $encoded_filename = str_replace("+ ", "%20", $encoded_filename);
 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 . '"');
 }

 header('Content-Disposition: attachment; filename="' . $filename . '"');
 header ("Content-Length: ". filesize($file));
 readfile($file);

In addition, interested friends can study the module mod_xsendfile module in the apache server, which can be used It improves the efficiency of PHP sending files.