set Player nametag

I added Player using AddPlayer packet and tried to set nametag, but dont working

PHP:

public function createNPC(Player $p){
$pk = new AddPlayerPacket();
$title = "Playing $this->song";
$pk->uuid = UUID::FromRandom();
    $pk->eid = 9273;
    $pk->x = 128;
    $pk->y = 65;
    $pk->z = 134;
    $pk->speedY = 0;
    $pk->speedX = 0;
    $pk->speedZ = 0;
    $pk->yaw = 0;
    $pk->item = Item::get(0);
    $pk->headYaw = 0;
    $pk->pitch = 0;
    $pk->metadata = [Entity::DATA_NAMETAG => [Entity::DATA_TYPE_STRING, $title]];
    $p->dataPacket($pk);
}

 

'But dont working'
What is not working? What do you expect it to do, and what does(n't) it do? Does it give any errors?

 

Setting name tag not working.. Not i dont get any errors

 

How to define $entity

 

Player is Entity (FYI)

Spoiler: defining $entity

Code:

$entity = null;
$entity = "";
$entity = PHP_INT_MAX;
$entity = [];
$entity = M_PI;
$entity = true;
$entity = [Foo::class, "bar"];
$entity = new Bar();

Please learn the language before attempting.

 

Entity::setNameTag(string);

 

I want to set nametag in addPlayerPacket