用phpExcel和tp5导出数据

public function user(){
　　　　 //查询数据
        $user_table =  Db::table(‘user_msg‘)->select();
        $show_table = array();
        foreach($user_table as $k=>$v){
            $orderArr = Db::query("SELECT * from orders where user_id=‘{$v[‘user_id‘]}‘ limit 0,1");
            if(!empty($orderArr)){
                //总价格表
                $total_price = Db::query("select sum(total_price) from (SELECT total_price FROM orders where user_id = ‘{$v[‘user_id‘]}‘) as newtable");
                // 用户最后一次消费表
                $last_time   = Db::query("select create_time from orders WHERE user_id = ‘{$v[‘user_id‘]}‘ order by create_time desc limit 0,1 ");
            }
            // 用户的总价表
            $show_table[$k][‘total_price‘] = !empty($orderArr)?$total_price[0][‘sum(total_price)‘]:false;
            $show_table[$k][‘last_time‘]   = !empty($orderArr)?$last_time[0][‘create_time‘]:false;
            foreach ($v as $m=>$n) {
                $show_table[$k][$m] = $n;
            }
        }
        //按价格对数组进行排序
        foreach($show_table as $a=>$b){
            $show[] = $b[‘total_price‘];//价格存入一个数组
        }
        array_multisort($show,SORT_DESC,$show_table);//对数组按照价格（total_price）进行排序
        //链接phpexcel.PHPExcel页
        import(‘phpexcel.PHPExcel‘, EXTEND_PATH);
        //实例化PHPExcel()类
        $obj = new \PHPExcel();
        $objsheet = $obj->getActiveSheet();//获得当前活动sheet的操作对象
        $objsheet ->setTitle(‘用户列表‘);//给当前sheet设置名称
　　　　　//设置表中数据
        //设置标题(按照表格的方式)
        $objsheet ->setCellValue("A1",‘账号‘)->setCellValue("B1",‘昵称‘)->setCellValue(‘D1‘,‘创建时间‘)->setCellValue(‘E1‘,‘最近一次消费‘)->setCellValue("F1",‘总消费‘);
        $j = 2;
        //录入数据
        foreach($show_table as $k=>$v){
            $objsheet ->setCellValue("A".$j,$v[‘user_id‘])->setCellValue("B".$j,$v[‘user_name‘])->setCellValue("C".$j,$v[‘tel‘])->setCellValue(‘D‘.$j,$v[‘create_time‘])->setCellValue(‘E‘.$j,$v[‘last_time‘])->setCellValue("F".$j,$v[‘total_price‘]);
            $j++;
        }
        //生成Excel文件
        $obj1 = \PHPExcel_IOFactory::createWriter($obj,‘Excel5‘);

        $this->create(‘Excel5‘,‘用户列表.xls‘);//命名并生成文件下载，调用下面方法

        $obj1->save("php://output");
    }
    //生成报表方法
    function create($type,$file){
        if($type == "Excel5"){
            header(‘Content-Type: application/vnd.ms-excel‘);
        }else{
            header(‘Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet‘);
        }
        header(‘Content-Disposition: attachment;filename = "‘.$file.‘"‘);
        header(‘Cache-Control:max-age=0‘);//禁止缓存

    }