$liste = array();
$e = new beacon();
$e->uuid = $rs["uuid"];
$e->major = $rs["major"];
$e->minor = $rs["minor"];
$e->durum = $rs["durum"];
$liste[] = $e;
echo json_encode($liste);
veya
$response["user"]["name"] = $user["name"];
$response["user"]["email"] = $user["email"];