nasıl diğer fonksiyonu $ _FILES göndermek?

<?php
function save(how get $_FILES["img"] ??)
{
    //$img = $_FILES["img"]; How get  $_FILES["img"] ??
    $user_file = $_FILES['img']['name'];
    $file_temp = $_FILES['img']['tmp_name'];
    $new = "new/";

    move_uploaded_file($file_temp, $new .$user_file.'');
    echo "<br><b>OK<b>";
}

if(isset($_POST['SEND'])){
    save($_FILES["img"]);
}
?>