1,'province'=>'福建省','parent_id'=>0),
array('cat_id'=>2,'province'=>'龙岩市','parent_id'=>1),
array('cat_id'=>3,'province'=>'广东省','parent_id'=>0),
array('cat_id'=>4,'province'=>'佛山市','parent_id'=>3),
array('cat_id'=>5,'province'=>'江西省','parent_id'=>0),
array('cat_id'=>6,'province'=>'南昌市','parent_id'=>5),
array('cat_id'=>7,'province'=>'赣州市','parent_id'=>5),
array('cat_id'=>8,'province'=>'宁都县','parent_id'=>7),
);
function son($arr,$cat_id){
static $list;
foreach($arr as $v){
if($v['cat_id'] == $cat_id){
print_r($v);
$list[] =$v;
son($arr,$v['parent_id']);
}
}
return $list;
}
$list = son($area,8);
foreach($list as $v){
echo '--->',$v['province'];
}
/**执行结果源代码
Array
(
[cat_id] => 8
[province] => 宁都县
[parent_id] => 7
)
Array
(
[cat_id] => 7
[province] => 赣州市
[parent_id] => 5
)
Array
(
[cat_id] => 5
[province] => 江西省
[parent_id] => 0
)
--->宁都县--->赣州市--->江西省
**/
?>
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