title: How to access protected variable of class inside static method of the same class?
body: <p>Below is the scenario:</p>
  
  <pre><code>class PopupsAdminSettingsPage extends AbstractAdminSubPage
  {
      protected $menuTitle = 'Settings';
  
      public static function getMenuTitle()
      {
          /* I want to access $menuTitle property here ...
      }
  }
  </code></pre>
  
  <p>I want to access the <code>$menuTitle</code> property inside the static function <code>getMenuTitle</code> so that I could access the protected variable outside of the <code>Class PopupsAdminSettingsPage</code> too.</p>