Untitled

// START DOWNLOADING FILE IF IT IS ON THE SERVER.
			$filename = SITE_PATH."/".UPLOAD_DIR."/files/".$row['dFilename'];
			if (file_exists($filename))
			{
			// LOAD IMAGE.
				$file_extension = strtolower(substr(strrchr($row['dFilename'],"."),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 "jpeg":
					case "jpg": $ctype="image/jpeg"; break;
					default: $ctype="application/force-download";
				}
				header("Pragma: public");
				header("Expires: 0");
				header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
				header("Cache-Control: private",false);
				header("Content-Type: ".$ctype);
				header("Content-Disposition: attachment; filename=\"".basename($row['dFilename'])."\";" );
				header("Content-Transfer-Encoding: binary");
				header("Content-Length: ".filesize($filename));
				readfile("$filename");
				exit();