Solved MCPE Client ID

How is MCPE client id generated ? Is safe to ban a player client ID ? How to get a player client id ?

Well, it's not a good way to ban someone, as you can configure it in a config in your MCPE Folder. And it'll get removed and replaced by UUID (Player::getUniqueID()) - Later will be running over an "Account-System" by Mojang, known from the PC Version of Minecraft.

thanks

PHP:

public function PreLogin(\pocketmine\event\player\PlayerPreLoginEvent $event){
$bannedClientIds = array();//you can type the client ids here
foreach($bannedClientIds as $ci){
if($event->getPlayer()->getClientId() == $ci){
$event->setKickMessage("You're Banned!");
$event->setCancelled(true);
}
}
}

array() resets at the Server restart. I recommend using MySQL, SQL or Files. And, as I said before, it's not that good to use ClientID, as it will be removed soon and is changeable.