Show online listings

help me
I want it to show a list that is online.

foreach($this->getServer()->getOnlinePlayers() as $player){
$this->playerList[strtolower($player->getName())] = $player;
$list = $player->getName();
}
$form->addDropdown("§aรายชื่อ§l§e ➤§r", [$list]);

 

PHP:

$players = [];
        $players[] = " ";
        foreach ($this->plugin->getServer()->getOnlinePlayers() as $player){
            $players[] = $player->getName();
        }
       $form->addDropdown("",$players);