<?php

final class MyClass extends SomeOtherClass {
  public function __construct() {
    parent::__construct();
  }

  public function uselessMethod($x, array $y) {
    return parent::uselessMethod($x, $y);
  }

  public function usefulMethod($x, array $y) {
    return parent::usefulMethod($x, null);
  }

  public function anotherMethod($x, &$y) {
    return parent::anotherMethod($x, $y);
  }

  public function usefulMethodWithDefaultValue($x = null) {
    return parent::usefulMethodWithDefaultValue($x);
  }
}
~~~~~~~~~~
advice:4:3
advice:8:3
advice:16:3