download.php
<?php $file=$_GET["url"]; $fullpath=$file; $filename='qrcode.png'; header("Content-type:image/png"); header('Content-Disposition: attachment; filename="' . $filename . '"'); readfile($fullpath); ?>
<?php $file=$_GET["url"]; $fullpath=$file; $filename='qrcode.png'; header("Content-type:image/png"); header('Content-Disposition: attachment; filename="' . $filename . '"'); readfile($fullpath); ?>