$ret = $html->find('div[id=foo]');
foreach($html->find('ul') as $ul)
{
foreach($ul->find('li') as $li)
{
// do something...
}
}
// Find first
in first
$e = $html->find('ul', 0)->find('li', 0);
echo $html->getElementById("div1")->childNodes(1)->childNodes(1)->childNodes(2)->getAttribute('id');