Player registered in server

Hello I wanted to ask for help to you on this question how do I know how many players are registered in a server? The plugin should read the folder players how many players there are and write them with a number.

Write them in a File at join(if not exists) and count() them.

you can give me an example?

Create a file and use

PHP:

private $players;

public function onEnable(){
$this->players = new Config($this->getDataFolder()."players.yml", Config::YAML);
}

public function onJoin(PlayerJoinEvent $event){
$player = $event->getPlayer();
if($this->players->exists(strtolower($player->getName()))){

} else{
$this->players->set(strtolower($player->getName()));
$this->players->save();
}
}


I would:

PHP:

count(glob($server->getDataFolder()."players/*"));


Where $server is an instance of \pocketmine\Server...

ok and maybe if I would like to see the number on a sign

If you are on linux, this may be faster:

PHP:

$cnt = (int) `ls $dir | wc -l`;