PHP upload gambar

$foto                   = $_FILES['foto'];

        if (!empty($foto) AND $foto['error'] == 0) {
            $path = './media/images/';
            $upload = move_uploaded_file($foto['tmp_name'], $path . $foto['name']);

            if (!$upload) {
                flash('error', "Upload file gagal");
                header('location : index.php');
            }
            $file = $foto['name'];
        }