hi.. i'm referring this address for function olLiTree

http://stackoverflow.com/questions/753853/php-function-that-creates-a-nested-ul-li

i have this array

$tree = array("A"=>array("B"=>array("C"=>"C","D"=>"D"),"E"=>array("F"=>"F","G"=>"G")));

but not able to use this function

function olLiTree($tree)
{
    echo '<ul>';
    foreach($tree as $item) {
        if (is_array($item)) {
            olLiTree($item);
        } else {
            echo '<li>', $item, '</li>';
        }
    }
    echo '</ul>';
}

to generate

<ul>
  <li>A</li>
  <li>B
    <ul>
      <li>C</li>
      <li>D</li>
    </ul>
  </li>
  <li>E
    <ul>
      <li>F
      </li>
    </ul>
  </li>
  <ul>
    <li>G</li>
  </ul>
</ul>

can anybody help me to fix this? thanks..