FormでもConfigを使う

form-with-config.php

<?php

declare(strict_types=1);

use pocketmine\form\Form;
use pocketmine\Player;
use pocketmine\plugin\PluginBase;
use pocketmine\utils\Config;

class Main extends PluginBase
{
    /** @var Config */
    private $config;

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

    public function foo(Player $player): void
    {
        $player->sendForm(new ExampleForm($this->config));
    }
}

class ExampleForm implements Form
{
    /** @var Config */
    private $config;

    public function __construct(Config $config)
    {
        $this->config = $config;
    }

    public function handleResponse(Player $player, $data): void
    {
        // TODO: Implement handleResponse() method.
    }

    public function jsonSerialize(): array
    {
        $options = $this->config->get("options");
        return [
            "content" => [
                [
                    "type" => "dropdown",
                    "text" => "選択してください",
                    "options" => $options,
                ],
            ],
        ];
    }
}