How do I set a value of an array in a config?

Config look:

Name:
value: 1
value2: 1
value3: 1

how do I change value2?

The Config object has a set() function that takes key and value arguments. The key would be "name.value2", the value would be whatever you wanted to set the key to.

https://github.com/PocketMine/PocketMine-MP/blob/master/src/pocketmine/utils/Config.php

The way I would do it is like so:

PHP:

$array = $this->cfg->get("Name");

$array["value2"]  = "new_value";

$this->cfg->set("Name", $array);

$this->cfg->save();


Buuuutttttt... @Extreme_Heat's answer is probably more efficient.

First, that's not an array, second, I personally prefer use @applqpak method.

That would be

Code:

name.value1: Hello

If the config should look like the one you posted, "Name" would be empty. This is a YAML file, make sure to use spaces.

Code:

Name:
  value1: Hi
  value2: Bye

Here, you can/have to use setNested().

PHP:

$config->setNested("Name.value1", "Hey");

The dot basically tells the config to go into the next "dimension" of the array. Only at setNested() though.