我的数据库中有几个类别,我正在使用类似这样的嵌套集模型检索它们(括号中的数字代表深度):
新(1)
-常规(2) -
控制台(2)
游戏(1)
-pc(2)
--emulator(3)
-ps3(2)
然后我有一个函数来处理多维数组并生成导航菜单——这个
模型
从数据库中返回以下数组
Array (
[0] => Array ( [name] => News [depth] => 1 )
[1] => Array ( [name] => General [depth] => 2 )
[2] => Array ( [name] => Console [depth] => 2 )
[4] => Array ( [name] => Games [depth] => 1 )
[5] => Array ( [name] => PC [depth] => 2 )
[6] => Array ( [name] => emulator [depth] => 3 )
[8] => Array ( [name] => ps3 [depth] => 2 )
)
--控制器
public function index()
{
$navTree = $this->getNavTree(); //gets array from model
$createNavTree = $this->_renderTree($navTree); //pass array to function
$this->load->view('testnavigation.php', $createNavTree);
}
function _renderTree($tree){
$current_depth = 0;
$counter = 0;
$result = '';
foreach($tree as $node){
$node_depth = $node['depth'];
$node_name = $node['name'];
$node_id = $node['categoryid'];
if($node_depth == $current_depth){
if($counter > 0) $result .= '</li>';
}
elseif($node_depth > $current_depth){
$result .= $counter == 0 ? '<ul id="nav">' : '<ul>';
$current_depth = $current_depth + ($node_depth - $current_depth);
}
elseif($node_depth < $current_depth){
$result .= str_repeat('</li></ul>',$current_depth - $node_depth).'</li>';
$current_depth = $current_depth - ($current_depth - $node_depth);
}
$result .= '<li><a href="#">'.$node_name.'</a>';
++$counter;
}
$result .= str_repeat('</li></ul>',$node_depth).'</li>';
$result .= '</ul>';
return $result;
}
- 看法
echo $createNavTree;
该列表以正确的缩进顺序创建,但是我遇到的问题是为每个项目生成链接,例如模拟器的链接应该是 mysite.com/games/pc/emulator
我将如何实现这一目标,感谢您的帮助?