Why does $form not Work ?

This is the Problem:

[14:55:30] [Server thread/CRITICAL]: ParseError: "syntax error, unexpected '$form ' (T_VARIABLE)" (EXCEPTION) in "plugins/teleporter/src/teleporter/teleporter" at line 16

And this is the code:

<?php

namespace teleporter;

use pocketmine\plugin\PluginBase;
use pocketmine\event\Listener;
use pocketmine\command\CommandSender;
use pocketmine\command\Command;
use pocketmine\Player;
use pocketmine\plugin\Plugin;
use jojoe77777\FormAPI\SimpleForm;

class teleporter extends PluginBase implements Listener{

public function openHelpUI(CommandSender $player) {
$form = new SimpleForm(function(Player $player, int $data = null) {});
$form->addbutton("§3Citybuild");
}
public function onCommand(CommandSender $sender, string $commandLabel, array $args) {
switch ($args[0]) {
case "menu":
$form->sendToPlayer($player);
}
}
}

 

This code is a mess.

 

$form = $api->createSimpleForm(function (Player $sender, array $data) {

 

This isn't why the thread is for, of course without the api it won't work but the problem is his understanding of avriable scope.
https://www.php.net/manual/en/language.variables.scope.php should be helping you, when you understood that, there's another problem, how to pass the form with a function ? Well return the form through that function, in your case :

PHP:

return $form;

 

Saying that is useless as you aren't helping him.

 

PHP:

public function Form(Player $player) {
    $form = new SimpleForm(function(Player $player, int $data = null){
if($data === null){
return true;
}
case 0:
//code
break;
}
});
$form->setTitle("Title");
    $form->addbutton("§3Citybuild");
$form->sendToPlayer($player);
return $form;
  }
  public function onCommand(CommandSender $sender, string $commandLabel, array $args) {
 
switch ($args[0]) {
      case "menu":
        $this->Form($player);


Can Coppy