php数组递归方法有如下php数组：function genTree5($items) {foreach ($items as $item)$items[$item['pid']]['son'][$item['id']] = &$items[$item['id']];return isset($items[0]['son']) ? $items[0]['son'] : array();}复制代码方法二：function findChild($arr,$id){$childs=array();foreach ($arr as $k => $v){if($v['pid']== $id){$childs[]=$v;}}// echo "return $childs;}function build_tree($root_id){global $items;$childs =array();$childs=findChild($items,$root_id);// print_r($childs);// die();if(empty($childs)){return null;}foreach ($childs as $k => $v){$rescurTree=build_tree($v['id']);if( null != $rescurTree){$childs[$k]['son']=$rescurTree;}}return $childs;}复制代码
";print_r($childs);die();