foreach($sender->getServer()->getOnlinePlayers() as $onlinePlayer) {
	$onlinePlayer->getInventory()->clearAll();
	$onlinePlayer->getArmorInventory()->clearAll();
	$onlinePlayer->getEffects()->clear();
	$onlinePlayer->getEnderInventory()->clearAll();
	$onlinePlayer->save();

	$onlinePlayer->disconnect("Disconnected from server");
}