Calling a function in a function from the same class page

[Hwona]

Hello, I'm currently trying to edit the code in the class_owned_adoptables files and am trying to call the "getNextLevel" function in another function, but I can't get the function to return a value. Does anyone know a way around this or a way to call the function within a function in the same file? I'm using v1.3.3. Thank you!

The code is something like this in the function that calles the "getNextLevel" function:

public function code{
$nextlevel = $this->getNextLevel();
$document->add(new Comment($nextlevel));
}

No value is returned.