PHP分页查询

public function getAdminOpLogListByPager(AdminOpLogListContext $context, $sys)
    {
        $op = Db::table('admin_op_log')
            ->where('sys', $sys);
        if ($context->admin_id_arr != [-1]) {
            $op = $op->whereIn('admin_id', $context->admin_id_arr);
        }
        if ($context->field) {
            if ($context->lifting == 1) {
                $op = $op->order($context->field . ' desc');
            } else {
                $op = $op->order($context->field . ' asc');
            }
        }
        //总共记录
        $total = $op->count();
        $list = $op->limit($context->page_count * ($context->page_no - 1), $context->page_count + 1)->select();
        $count = count($list);
        $hasMore = false;
        if ($count > (int)$context->page_count) {
            $hasMore = true;
            array_pop($list);
        }
        return [
            'data' => array_values($list),
            'total' => $total,
            'has_more' => $hasMore
        ];
    }
        //处理前端样式
        $data = $result['data'];
        //总共记录
        $total_count = $result['total'];
        //总页数
        $totalPage = ceil($totalCount / $context->page_count);
        $page_info = [
            'page_no' => (int)$context->page_no,
            'page_count' => (int)$context->page_count,
            'page_total' => $totalPage,
            'total' => $totalCount,
        ];
        return [
            'page_info' => $page_info,
            'list' => array_values($data)
        ];
        //总页数
        $totalPage = ceil($totalCount / $pageCount);
        return [
            'page_no' => (int)$pageNo,
            'page_count' => (int)$pageCount,
            'has_more' => $result['has_more'],
            'list' => array_values($data),
            'total' => $totalPage,
        ];