downloadFile.php?FileName="test.txt"
In Firefox, Opera and IE6 I'll get a "Save as" dialogue window, but in IE7 I'll only get an empty HTML window.
Why does it not work in IE7?
downloadFile.php:
Code: Select all
<?php
function dlFile($file){
// First, see if the file exists
if (!is_file($file)) { die("<b>404 File not found!</b>"); }
// Gather relevent info about file
$len = filesize($file);
$fileName = basename($file);
$fileExtension = strtolower(substr(strrchr($filename, "."), 1));
// This will set the Content-Type to the appropriate setting for the file
switch($fileExtension) {
case "pdf": $ctype = "application/pdf"; break;
case "exe": $ctype = "application/octet-stream"; break;
case "zip": $ctype = "application/zip"; break;
case "doc": $ctype = "application/msword"; break;
case "xls": $ctype = "application/vnd.ms-excel"; break;
case "ppt": $ctype = "application/vnd.ms-powerpoint"; break;
case "gif": $ctype = "image/gif"; break;
case "png": $ctype = "image/png"; break;
case "jpeg":
case "jpg":
$ctype="image/jpg"; break;
case "mp3": $ctype = "audio/mpeg"; break;
case "wav": $ctype = "audio/x-wav"; break;
case "mpeg":
case "mpg":
case "mpe":
$ctype = "video/mpeg"; break;
case "mov": $ctype = "video/quicktime"; break;
case "avi": $ctype = "video/x-msvideo"; break;
case "txt": $ctype = "application/octetstream"; break;
//The following are for extensions that shouldn't be downloaded (sensitive stuff, like php files)
case "php":
case "htm":
case "html":
die("<b>Cannot be used for ". $fileExtension . " files!</b>"); break;
default: $ctype = "application/octetstream";
}
// Begin writing headers
ob_start();
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
// Use the switch-generated Content-Type
header("Content-Type: $ctype");
// Force the download
header("Content-Disposition: attachment; filename=\"" . $fileName "\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $len);
ob_end_flush();
@readfile($file);
exit();
}
if (!isset($_GET['FileName'])) die("<b>Parameter FileName is not set!</b>");
dlFile($_GET['FileName']);
?>