ExampleCommand.php

<?php
	/*******************************************************************************
	 * Copyright © 2019 PJSoft All Rights Reserved.
	 *
	 * This program is free software: you can redistribute it and/or modify
	 * it under the terms of the GNU General Public License as published by
	 * the Free Software Foundation, either version 3 of the License, or
	 * (at your option) any later version.
	 *
	 * This program is distributed in the hope that it will be useful,
	 * but WITHOUT ANY WARRANTY; without even the implied warranty of
	 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	 * GNU General Public License for more details.
	 *
	 * You should have received a copy of the GNU General Public License
	 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
	 ******************************************************************************/
	
	class ExampleCommand extends Command {
		
		public function __construct() {
			$name = "example";
			$description = "Command";
			$usageMessage = "/example";
			$aliases = array();
			parent::__construct($name, $description, $usageMessage, $aliases);
			$this->setPermission("permission.example.test");
		}
		
		public function execute(CommandSender $sender, string $commandLabel, array $args): bool {
			if (!$this->testPermission($sender)) {
				$sender->sendMessage(TextFormat::RED . "権限がないよ！");
				return true;
			}
                        //権限があった
                }
	}