PHP 无限分门别类table转div

$ar = array (<br />
  2 => <br />
  array (<br />
    'classid' => '6',<br />
    'classfid' => '0',<br />
    'classname' => '栏目一',<br />
  ),<br />
  1 => <br />
  array (<br />
    'id' => '7',<br />
    'classfid' => '6',<br />
    'classname' => '栏目1-1',<br />
  ),<br />
  0 => <br />
  array (<br />
    'classid' => '10',<br />
    'classfid' => '7',<br />
    'classname' => '栏目1-1-1',<br />
  ),<br />
);<br />
<br />
echo '<ul>';<br />
foreach($ar as $item) {<br />
  if($item['classfid'] == 0) $deep = 0;<br />
  $t = substr_count($item['classname'], '-');<br />
  if($t < $deep) echo '</li></ul>';<br />
  if($t > $deep) echo '<ul>';<br />
  echo '<li>'.$item['classname'];<br />
  $deep = $t;<br />
}<br />
while($deep--)  echo '</li></ul>';<br />