Adding Commands with tasks

How would I code this, I need an example

What do you mean?
Are you trying to run a command using a task?
Please explain some more.

Yes, I am. How would I code this for example "teleporting every player to a set given point in the game and back to spawn on the two different commands that have been used" also how would I Create a configuration using php. I'm new to this and PHP Academy is not supported on mobile platform's such as mine..

You could just use the teleport() function within the task.

To actually use commands:
Use $this->getServer()->dispatchCommand(new ConsoleCommandSender(), $command);

And there are a few ways you can create configurations, I'll show you my method.

PHP:

// How to create the config:
    public function onEnable() {
        $this->config = new Config($this->getDataFolder() . "config.yml", Config::YAML, array(
        "message" => "This is a test",
        "message2" => "This is a second test"
        ));
    }

    // How to get information from the config:
    $this->config->get("message");

    // Getting information from the config in an event:
    public function onJoin(PlayerJoinEvent $event) {
        $event->getPlayer()->sendMessage($this->config->get("message")); // Will sendMessage "This is a test" to player
        $event->getPlayer()->sendMessage($this->config->get("message2")); // Will sendMessage "This is a second test" to player
    }

    // How to change information in the config:
    $this->config->set("message", "This message is changed"); // Changes what was once "This is a test" to "This message is changed"
    $this->config->save(); // Saves the config

    // Using it in an event:
    public function onChat(PlayerChatEvent $event) {
        $message = $event->getMessage();
    
        $this->config->set("message", $message); // Changes "This is a test" to whatever the player says
        $this->config->save(); // saves config
    }
}

Please keep in mind that these are only examples, and configs can be used for many other things.

TY