Pass19
打开第十九关，发现上传的地方还可以定义上传的文件名
再看看提示
这里说这个文件名是用的 post 方式传递的，那么看看源码到底要怎
么绕过
$is_upload = false;$msg = null;if (isset($_POST['submit'])) {
if (file_exists(UPLOAD_PATH)) {
$deny_ext =
array("php","php5","php4","php3","php2","html","htm","phtml","pht","j
