Make CustomForm

How can I create a custom form

 

use FormAPI

 

you can use https://poggit.pmmp.io/p/FormAPI plugin by jojoe77777

example code:
$form = $this->getServer()->getPluginManager()->getPlugin("FormAPI")->createCustomForm(Player $player, $data){
$result = $data;
$this->msg = $data[0];
if($result == null){
}
switch($result){
case 0:
$this->getServer()->getBroadCastMessage($this->msg);
break;
}
});
$form->setTitle("Example Title");
$form->addLabel("Example");
$form->addInput("Example Button", 0);
$form->sendToPlayer($player);
}