ClassWithNonPublicAttributes.php

<?php

class ParentClassWithPrivateAttributes {
  private static $privateStaticParentAttribute = 'foo';
  private $privateParentAttribute = 'bar';

}
class ParentClassWithProtectedAttributes extends ParentClassWithPrivateAttributes {
  protected static $protectedStaticParentAttribute = 'foo';
  protected $protectedParentAttribute = 'bar';

}
class ClassWithNonPublicAttributes extends ParentClassWithProtectedAttributes {
  public static $publicStaticAttribute = 'foo';
  protected static $protectedStaticAttribute = 'bar';
  protected static $privateStaticAttribute = 'baz';
  public $publicAttribute = 'foo';
  public $foo = 1;
  public $bar = 2;
  protected $protectedAttribute = 'bar';
  protected $privateAttribute = 'baz';
  public $publicArray = array(
    'foo',
  );
  protected $protectedArray = array(
    'bar',
  );
  protected $privateArray = array(
    'baz',
  );

}