File Downloads through a PHP Script

OK. Here's what I want to do.

Firstly, I'm inside a script using PHP sessions (according to the fpasshtru manual page this can make a difference).

I want to have people click on a download link. When they do, I execute a bit of code, then send them the file.

Firstly, I tried using the Location: header. This worked fine in IE, but Mozilla just displayed the file (think I probably have a nextraneous space or line reuturn somewhere - haven't been able to find it - my script is in multiple files).

I have now got it so I can download the file, but the file is given the name of the PHP script, which I don't want. I want the file to have it's original filename.

Here's my code so far:


 $filename = 'files/' . $data_upload['filename']; if (file_exists ($filename)) {
 $FILECMD = '/usr/bin/file';
 $contentType = '';
 $fp = popen("$FILECMD -bin $filename", 'r');
 if (!$fp) {
 $contentType='application/octet-stream';
 } else {
 while($string=fgets($fp, 1024)) $contentType .= $string;
 pclose($fp);
 }
 if (strpos ($HTTP_SERVER_VARS['HTTP_USER_AGENT'], 'MSIE')) {
 // IE cannot download from sessions without a cache
 header('Cache-Control: public');
 // Fix problems with multiple .'s in filenames
 $fileName = preg_replace('/\./', '%2e', $fileName, substr_count($fileName, '.') - 1);
 }
 header("Content-type: $contentType");
 header("Content-Disposition:inline; filename=\"".$file."\"");
 header("Content-length:".(string)(filesize($filename)));
 $fd=fopen($filename,'rb');
 
 while(!feof ($fd)) {
 print fread($fd, 4096);
 } fclose($fd);
 } else {
 print "File Not Found";
 }

Please tell me this can be done!

Allen

PS. Someone should really fix these forums to preserve code indenting o_O