title: Problems with SORT_FLAG_CASE flag
body: <p>I am tring to do (like) a 2 dimensional array, case insensitive.</p>
  
  <p>I have:</p>
  
  <pre><code>foreach ($rows as $key=&gt;$row) { 
      $names[$key]=$row['Name']; 
  } 
  
  array_multisort($rows,SORT_STRING|SORT_FLAG_CASE,$names);
  </code></pre>
  
  <p>The above ends up producing the same result (with or without case flag).</p>
  
  <p>Sick of staring at this, any ideas from somebody outside?</p>