无限级分类之家谱树,面包屑导航(迭代)

<?php $are=array( ['id'=>1,'name'=>'安徽','parent'=>0
<?php

$are=array(
    ['id'=>1,'name'=>'安徽','parent'=>0],
    ['id'=>2,'name'=>'海淀','parent'=>7],
    ['id'=>3,'name'=>'淮溪县','parent'=>5],
    ['id'=>4,'name'=>'昌平县','parent'=>7],
    ['id'=>5,'name'=>'淮北','parent'=>1],
    ['id'=>6,'name'=>'朝阳','parent'=>7],
    ['id'=>7,'name'=>'北京','parent'=>0],
    ['id'=>8,'name'=>'上地','parent'=>2]
    );
/*思路
    先找到自己
    把parent赋值给$id
    然后while判断id是不是0 做循环


*/

function framily($data,$id){
    static $far=array();
    while ($id!=0) {
        foreach ($data as $v) {
            if ($v['id']==$id) {//先找到自己
                $far[]=$v;//递和归的顺序换下 显示的顺序就反了
                $id=$v['parent'];
                break;
            }
        }
    }
    return $far;
}
print_r(framily($are,8));