将返回的数据集转换成树
- WBOYOriginal
- 2016-06-07 11:45:441376browse
/**<br>
* 将返回的数据集转换成树<br>
* @param array $list 数据集<br>
* @param string $pk 主键<br>
* @param string $pid 父节点名称<br>
* @param string $child 子节点名称<br>
* @param integer $root 根节点ID<br>
* @return array 转换后的树<br>
*/<br>
function list_to_tree($list, $pk = 'id', $pid = 'pid', $child = '_child', $root=0) {<br>
$tree = array();// 创建Tree<br>
if(is_array($list)) {<br>
// 创建基于主键的数组引用<br>
$refer = array();<br>
foreach ($list as $key => $data) {<br>
$refer[$data[$pk]] =& $list[$key];<br>
}<br>
<br>
foreach ($list as $key => $data) {<br>
// 判断是否存在parent<br>
$parentId = $data[$pid];<br>
if ($root == $parentId) {<br>
$tree[$data[$pk]] =& $list[$key];<br>
}else{<br>
if (isset($refer[$parentId])) {<br>
$parent =& $refer[$parentId];<br>
$parent[$child][] =& $list[$key];<br>
}<br>
}<br>
}<br>
}<br>
return $tree;<br>
} AD：真正免费，域名+虚机+企业邮箱=0元
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