title: GlobIterator list folders that do not contain
body: <p>I'm trying to list all folders that don't contain the file koala.jpg, I tried this method:</p>
  
  <pre><code>$iterator = new GlobIterator('/storage/websites/site/images/menu_slider/*/koala.*',  GlobIterator::CURRENT_AS_PATHNAME);
  
  if (!$iterator-&gt;count()) {
      echo 'No matches';
  } else {
      $n = 0;
  
      printf("Matched %d item(s)\r\n".'&lt;br /&gt;', $iterator-&gt;count());
  
      foreach ($iterator as $item) {
          printf("[%d] %s\r\n".'&lt;br /&gt;', ++$n, $iterator-&gt;key()).'&lt;br /&gt;';
      }
  }
  </code></pre>
  
  <p>Only Problem is, it only lists the files that do contain koala.jpg and i need to know which folders do not contain it. and also How would i get the value of * (in this case 235x141) for each?</p>
  
  <p>it returns:</p>
  
  <pre><code>Matched 14 item(s)
  [1] /storage/websites/site/images/menu_slider/235x141/koala.jpg
  [2] /storage/websites/site/images/menu_slider/235x200/koala.jpg
  [3] /storage/websites/site/images/menu_slider/240x100/koala.jpg
  [4] /storage/websites/site/images/menu_slider/240x200/koala.jpg
  [5] /storage/websites/site/images/menu_slider/250x200/koala.jpg
  [6] /storage/websites/site/images/menu_slider/250x300/koala.jpg
  [7] /storage/websites/site/images/menu_slider/250x400/koala.jpg
  [8] /storage/websites/site/images/menu_slider/365x200/koala.jpg
  [9] /storage/websites/site/images/menu_slider/470x200/koala.jpg
  [10] /storage/websites/site/images/menu_slider/470x60/koala.jpg
  [11] /storage/websites/site/images/menu_slider/480x100/koala.jpg
  [12] /storage/websites/site/images/menu_slider/595x200/koala.jpg
  [13] /storage/websites/site/images/menu_slider/960x100/koala.jpg
  [14] /storage/websites/site/images/menu_slider/960x200/koala.jpg 
  </code></pre>
  
  <p>Any Help Greatly Apreciated.</p>