php递归方法实现无限分类实例代码

2026-01-16 16:37:01 作者：用户投稿

数组：

复制代码代码如下:
$items = array(
array('id' => 1, 'pid' => 0, 'name' => '一级11' ),
array('id' => 11, 'pid' => 0, 'name' => 'www. 一级12' ),
array('id' => 2, 'pid' => 1, 'name' => '二级21' ),
array('id' => 10, 'pid' => 11, 'name' => '二级22' ),
array('id' => 3, 'pid' => 1, 'name' => '二级23' ),
array('id' => 12, 'pid' => 11, 'name' => '二级24' ),
array('id' => 13, 'pid' => 12, 'name' => '三级31' ),
array('id' => 9, 'pid' => 1, 'name' => '二级25' ),
);

函数：

复制代码代码如下:
function formatTree($array, $pid = 0){
$arr = array();
$tem = array();
foreach ($array as $v) {
if ($v['pid'] == $pid) {
   $tem = formatTree($array, $v['id']);
                        //判断是否存在子数组
   $tem && $v['son'] = $tem;
   $arr[] = $v;
}
}
return $arr;
}