PHP函数创建嵌套的ul li？

<?php
$list_items = array(
    array('id' => 1, 'name' => 'Item 1'),
    array('id' => 2, 'name' => 'Item 2'),
    array('id' => 3, 'name' => 'Item 3')
);

$html = '<ul>';
foreach ($list_items as $item) {
    $html .= '<li>' . $item['name'] . '</li>';
}
$html .= '</ul>';

echo create_nested_ul_li($html);
?>

<ul>
  <li>Item 1</li>
  <li>Item 2</li>
  <li>Item 3</li>
</ul>