value zero

[mediaposter]

i try to integrate with my php form but value after isset its blank.

my code:

if(isset($_POST['save'])){

if(!empty($_FILES['files']['name'])){
        $results =  $_FILES['files']['name'];
        echo $results;
}else{

    echo "empty";
}}

as the result, value not showing as empty but when on echo its nothing to appear.