if(!empty($_FILES)){
    $tmp_name = $_FILES['myfile']['tmp_name'];

    echo "<pre>";
    print_r($_FILES);

    $name = $_FILES['myfile']['name'];

    $ext=explode(".", $name)[1];

    $new_name = uniqid() . '.' . $ext;

    $path = realpath('./') . '/uploads/' . $new_name;

    printf("New Name = %s, path = %s \n", $new_name, $path);

    if(move_uploaded_file($tmp_name, $path)){
        echo 'Yey!!! Check Uploads.';
    } else {
        echo 'Ah... May have hit some error.';
    }

    echo "<image src=\"https://project.cs.cf.ac.uk/D.A.Koehler/uploads/" . $new_name . "\">";
}