PHP upload image

<form method="post" action="uplo.php" enctype="multipart/from-data">
<input type="file" name="img"/>
<input type="submit"/>
</form>
<?php
$one = array('image/jpeg');
if(isset($_FILES['img'])){
if(in_array($_FILES['img']['type'], $one)){
$two = file_get_contents($_FILES['img']['tmp_name']);
$three = base64_encode($two);
echo '<img src="data:'.$_FILES['img']['type'].';base64, '.$three.'"/>';
move_uploaded_file($_FILES['img']['tmp_name'], 'images'.$_FILES['img']['name']);
}
}
?>