php 二维数组 根据条件合并成新的二维数组

　　　　　$_data = [];
        $order_id = ‘‘;
        foreach ($data as $k => $v) {
            if($order_id != $v[‘order_id‘]){
                $arr = [];
                $arr[‘id‘] = $v[‘id‘];
                $arr[‘order_number‘] = $v[‘order_number‘];
                $arr[‘edit_time‘] = $v[‘edit_time‘];
                $arr[‘order_state‘] = $v[‘order_state‘];
                $arr[‘goods_info‘][] = $v;
                $_data[] = $arr;
                $order_id = $v[‘order_id‘];
            }else{
                $arr = $_data[sizeof($_data)-1];
                $arr["goods_info"][] = $v;
                $_data[sizeof($_data)-1] = $arr;
            }
        }

原文地址：https://www.cnblogs.com/zjj1990/p/9042364.html