note 62323 added to function.header

I use this in a popup-window, which works just fine! The filename is sent by the "download" link in an other php-file. More filetypes can be added. My only Problem: The popup window remains empty whatever i do, even with ob_start and end_flush. I want to put "download should be starting automatically, otherwise...." into the popup window. what can I do? $filename = $_GET['some_file_name']; $filename = realpath($filename); $file_extension = strtolower(substr(strrchr($filename,"."),1)); switch ($file_extension) { 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 "jpe": case "jpeg": case "jpg": $ctype="image/jpg"; break; default: $ctype="application/force-download"; } if (!file_exists($filename)) { die("file not found. Sorry."); } header("Pragma: public"); header("Expires: 0"); header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header("Cache-Control: private",false); header("Content-Type: $ctype"); header("Content-Disposition: attachment; filename=\"".basename($filename)."\";"); header("Content-Transfer-Encoding: binary"); header("Content-Length: ".@filesize($filename)); set_time_limit(0); @readfile("$filename") or die("file not found. error."); ---- Server IP: 194.153.94.11 Probable Submitter: 217.162.137.70 ---- Manual Page -- http://www.php.net/manual/en/function.header.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+62323 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+62323&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+62323&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+62323&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+62323&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+62323&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+62323&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+62323&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+62323&report=yes Search -- http://master.php.net/manage/user-notes.php