Подскажите как правильно вывести их базы в список информацию
print_r Показывает

stdClass Object ( [id] => 33 [code] => 01.22.2 [name] => 123 [parent_id] => 31 [parent_code] => 01.22 [node_count] => 0 )
stdClass Object ( [id] => 34 [code] => 01.23 [name] => 2342 [parent_id] => 29 [parent_code] => 01.2 [node_count] => 0 )
stdClass Object ( [id] => 35 [code] => 01.24 [name] => 4654 [parent_id] => 29 [parent_code] => 01.2 [node_count] => 0 )
stdClass Object ( [id] => 36 [code] => 01.25 [name] => 4646 [parent_id] => 29 [parent_code] => 01.2 [node_count] => 9 )
stdClass Object ( [id] => 37 [code] => 01.25.1 [name] => 64563 [parent_id] => 36 [parent_code] => 01.25 [node_count] => 0 )
stdClass Object ( [id] => 38 [code] => 01.25.2 [name] => 465463 [parent_id] => 36 [parent_code] => 01.25 [node_count] => 0 )
stdClass Object ( [id] => 39 [code] => 01.25.3 [name] => 46456 [parent_id] => 36 [parent_code] => 01.25 [node_count] => 0 )
stdClass Object ( [id] => 40 [code] => 01.25.4 [name] => 456546 [parent_id] => 36 [parent_code] => 01.25 [node_count] => 0 )
stdClass Object ( [id] => 41 [code] => 01.25.5 [name] => 45656 [parent_id] => 36 [parent_code] => 01.25 [node_count] => 0 )

Пробовал сделать так, но там где нужны 2 закрывающих </ul> там одна

	echo '<ul>';
		foreach ($results as $result)
		{
			$parent_id = (int)$result->parent_id;
			
			if (!$parent_id) // Если значение пустое значит "Основной раздел"
			{
				echo '<li><strong>' . $result->code . ' - ' . $result->name . '</strong></li>';
				$id = (int)$result->id;
			}
			else //Остальные значения
			{
				if($parent_id == $id) // Если предыдущий ID Совпадает с родителем то переход глубже
				{
					echo '<ul>';
					echo '<li>[' . $id . '] ' . $result->code . ' - [ID - ' . $result->id . '] [ParentID - ' . $parent_id . ']</li>';
					$id = (int)$result->id;
					$idm = $id - 1;
					echo ' 01';
				}
				else
				{
					if($parent_id !== $idm)
					{
						if($parrent_item == $parent_id)
						{
//							echo '</ul>';
							echo '<li>[' . $id . '] ' . $result->code . ' - [ID - ' . $result->id . '] [ParentID - ' . $parent_id . ']</li>';
							echo ' 02';
							$id = (int)$result->id;
							$idm = $id - 1;
						}
						else
						{
							echo '</ul>';
							echo '<li>[' . $id . '] ' . $result->code . ' - [ID - ' . $result->id . '] [ParentID - ' . $parent_id . ']</li>';
							$id = (int)$result->id;
							$idm = $id - 1;
							echo ' 03';
							$parrent_item = $parent_id;
						}
					}
					else
					{
						echo '<li>[' . $id . '] ' . $result->code . ' - [ID - ' . $result->id . '] [ParentID - ' . $parent_id . ']</li>';
						echo ' 04';
						$id = (int)$result->id;
						$parrent_item = $parent_id;
					}
				}	
			}
			echo '<hr>';
		}
	echo '</ul>';