title: Adding Class current_page_item
body: <p>I am working on a Wordpress-Design and i want to creat a Custom Menu.</p>
  
  <pre><code>$items = wp_get_nav_menu_items('Menu', array(
      'order'                  =&gt; 'ASC',
      'orderby'                =&gt; 'menu_order',
      'post_type'              =&gt; 'nav_menu_item',
      'post_status'            =&gt; 'publish',
      'output'                 =&gt; ARRAY_A,
      'output_key'             =&gt; 'menu_order',
      'nopaging'               =&gt; true,
      'update_post_term_cache' =&gt; false));
  echo '&lt;pre&gt;'; print_r($items); echo '&lt;/pre&gt;'; 
  foreach($items as $item){
      echo '&lt;div class="menu_entry"&gt;&lt;a href="'.$item-&gt;url.'"&gt;'.$item-&gt;title.'&lt;/a&gt;&lt;/div&gt;';
  }
  </code></pre>
  
  <p>The problem is, i need the "current-page"-Class, which is WordPress creating - in the Standard Menu.</p>
  
  <p>Any Ideas how to add this class?</p>