thinkphp 5.0 excel导出

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public function excel()
    {
        //查找要导出的数据表
        $list = Db::table('eb_brand')->select();
        //导出的文件名称
        $file_name = date('Y-m-d_H:i:s') . '表格' . '.xls';
        dirname(__FILE__);
        $PHPExcel=new \PHPExcel();
        $objWriter = new \PHPExcel_Writer_Excel2007($PHPExcel);
        $PHPSheet = $PHPExcel->getActiveSheet();

        //设置水平居中
        $PHPExcel->setActiveSheetIndex(0)->getStyle('A')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $PHPExcel->setActiveSheetIndex(0)->getStyle('B')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $PHPExcel->setActiveSheetIndex(0)->getStyle('C')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $PHPExcel->setActiveSheetIndex(0)->getStyle('D')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

        // 设置个表格标题
        $PHPSheet->setTitle("代理商");
        $PHPSheet->setCellValue("A1", "ID");
        $PHPSheet->setCellValue("B1", "品牌名称");
        $PHPSheet->setCellValue("C1", "排序");
        $PHPSheet->setCellValue("D1", "图片地址");

        //设置表格宽度
        $PHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(20);
        $PHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(20);
        $PHPExcel->getActiveSheet()->getColumnDimension('C')->setWidth(20);
        $PHPExcel->getActiveSheet()->getColumnDimension('D')->setWidth(80);

        // 设置垂直居中
        $PHPExcel->setActiveSheetIndex(0)->getStyle('A')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $PHPExcel->setActiveSheetIndex(0)->getStyle('B')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $PHPExcel->setActiveSheetIndex(0)->getStyle('C')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $PHPExcel->setActiveSheetIndex(0)->getStyle('D')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

        $i = 2;
        foreach ($list as $key => $value) {
            $PHPSheet->setCellValue('A' . $i, '' . $value['id']);
            $PHPSheet->setCellValue('B' . $i, '' . $value['bname']);
            $PHPSheet->setCellValue('C' . $i, '' . $value['sort']);

            //获取到图片信息
            $img = DB::table('eb_brand')->where('id', $value['id'])->field('image_input')->find();

            $objDrawing[$key] = new \PHPExcel_Worksheet_Drawing();
            $objDrawing[$key]->setPath('.' . $img['image_input']);   //这里拼接 . 是因为要在根目录下获取

            $objDrawing[$key]->setHeight(20);//照片高度
            $objDrawing[$key]->setWidth(70); //照片宽度

            $objDrawing[$key]->setCoordinates('D' . $key);

            // 图片偏移距离
            $objDrawing[$key]->setOffsetX(12);
            $objDrawing[$key]->setOffsetY(12);
            $objDrawing[$key]->setWorksheet($PHPExcel->getActiveSheet());
//            $PHPSheet->setCellValue('D'.$i,''.$value['image_input']);
            $i++;
        }


        $PHPExcel->setActiveSheetIndex(0);
        $objWriter = \PHPExcel_IOFactory::createWriter($PHPExcel, "Excel2007");
        header('Content-Disposition: attachment;filename=' . $file_name);
        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
        header('Cache-Control: max-age=0');
        $objWriter->save("php://output");  //文件通过浏览器下载
    }
//具体参数根据实际需求

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