PHP数组有序&嵌套的HTML列表

时间:2011-04-28 05:40:11

标签: php jquery arrays list nested-sortable

我在项目中使用jQuery nestedSortable plugin。移动列表项时,我序列化数组并将其保存到我的数据库。我无法从PHP数组重新创建HTML列表。可能是因为它已经晚了。 :)

我有以下PHP数组:

Array
(
    [list_4] => root
    [list_3] => 4
    [list_1303966373] => 3
    [list_1] => 1303966373
    [list_5] => 1
    [list_2] => 1
    [list_6] => root
)

它应该列出类似......

的列表
<ol>
<li id='list_4'>value 4
  <ol>
    <li id='list_3'>value 3
      <ol>
        <li id='list_1303966373'>value 1303966373
          <ol>
            <li id='list_1'>value 1
              <ol>
                <li id='list_5'>value 5</li>
                <li id='list_2'>value 2</li>
              </ol>
            </li>
          </ol>
        </li>
      </ol>
    </li>
  </ol>
</li>
<li id='list_6'>value 6</li>          
</ol>

(忽略这些值,它们就在那里展示。)

HTML列表可以有任何深度的嵌套列表。

我的大脑已经死了,我无法上班。有人有建议吗?我永远欠你饼干。还有一座城堡。

感谢。 :)

1 个答案:

答案 0 :(得分:4)

在这里你有它(你的样品测试正常):

<?php
  $tree = array(
    "list_4" => "root",
    "list_3" => "list_4",
    "list_1303966373" => "list_3",
    "list_1" => "list_1303966373",
    "list_5" => "list_1",
    "list_2" => "list_1",
    "list_6" => "root",
 );
 function getChildrenLists($tree){
    $tree2 = array();
    foreach($tree as $child => $parent){
       if(!array_key_exists($parent, $tree2)) $tree2[$parent] = array();
       $tree2[$parent][] = $child;
    }
    return $tree2;
 }

 function renderTree($tree2, $parent = "root"){
    if($parent != "root") echo "<li id='$parent'> value $parent\n";
    $children = $tree2[$parent];
    if(count($children) > 0){ //If node has children
       echo "<ol>\n";
       foreach($children as $child)
          renderTree($tree2, $child);
       echo "</ol>\n";
    }
    if($parent != "root") echo "</li>\n";
 }
 $tree2 = getChildrenLists($tree); 
 renderTree($tree2);

?>

我想要我的饼干!呵呵。希望它有所帮助。