Untitled

How to move file to another folder? [closed]
<html>
<head>
<title>Main Page</title>
</head>
<body>
<h2>Main Page</h2>
<form  method="post" action="index.php" enctype="multipart/form-data">
<input type="file" name="filename">
<input type="hidden" name="MAX_FILE_SIZE" value="102400"/>
<input type="submit"  value="Upload file">
<br>
<?php
echo $_FILES['filename']['name'];
$uploads_dir = '/uploads';
$tmp_name = $_FILES['filename']['tmp_name'][$key];
$name = $_FILES['filename']['name'][$key];
move_uploaded_file($tmp_name, "$uploads_dir/$name");
?>
</body>
</html>

echo $_FILES['filename']['name'];

<form action = "index.php" method="post" enctype="multipart/form-data">
    <input type="hidden" name="MAX_FILE_SIZE" value="102400" />
    <input type="file" name="filename" />
    <input type="submit"  value="Upload file" />
</form>

<form  method="post" action="" enctype="multipart/form-data">