Php 在获取记录之前，csv会被下载

我正在进行php excel导出。在这里，我面临一些问题，比如有大量的数据，几乎有8000条记录。数据被完美地放置在单元格中。我的问题是什么

在3000条记录上，csv被下载。我怎样才能解决这个问题

没有更多的3000到8000我怎么能这样做

示例代码

    <?php
    // Connection 

                $tamdsreport_billing_qry = db_query($_SESSION['tamdsreport_billing_qry']);
                                while($result_tamdsreport_billing_qry = db_fetch_array($tamdsreport_billing_qry)){

                                  $datacenter_param = $result_tamdsreport_billing_qry['datacenter'];
                                  $cid_param = $result_tamdsreport_billing_qry['cid'];
                                  $rid_param = $result_tamdsreport_billing_qry['rid'];
                                  $datastore_name_param = $result_tamdsreport_billing_qry['datastore_name'];
                                  $cloud_type_param = $result_tamdsreport_billing_qry['cloud_type'];
                                  $storage_type_param = $result_tamdsreport_billing_qry['storage_type'];
                                  $avg_capacity_gb_param = $result_tamdsreport_billing_qry['avg_capacity_gb'];
                                  $avg_free_space_gb_param = $result_tamdsreport_billing_qry['avg_free_space_gb'];
                                  $avg_space_consumed_gb_param = $result_tamdsreport_billing_qry['avg_space_consumed_gb'];
                                  $gb_used_param = $result_tamdsreport_billing_qry['gb_used'];
                                  $start_date = $result_tamdsreport_billing_qry['start_date'];
                                  $end_date = $result_tamdsreport_billing_qry['end_date'];


                                 $html3[] = "<tr><td>$datacenter_param</td><td>$start_date</td><td>$end_date</td><td>$cid_param</td><td>$rid_param</td><td>$datastore_name_param</td><td>$cloud_type_param</td><td>$storage_type_param</td><td>$avg_capacity_gb_param</td><td>$avg_free_space_gb_param</td><td>$avg_space_consumed_gb_param</td><td>$gb_used_param</td></tr>";

                        }



        $html = "<table><tr><td>&nbsp;</td><tr><td><h3>Storage Usage for A0CA </h3> </td></tr><tr bgcolor='#445fea'><td>Data Center</td><td>Report Start Date</td><td>Report End Date</td><td>CID</td><td>RID</td><td>Data Store Name</td><td>Cloud Type</td><td>Storage Type</td><td>Avg capacity GB</td><td>Avg free space GB</td><td>Avg space consume GB</td><td>GB Used</td></tr>".implode("\r\n", $html3). "</table>";


        $fileName = 'tamdrp_billing_export_US.xls';

}
header('Content-Type: application/octet-stream');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header("Content-Disposition: attachment; filename=$fileName");
echo $html;
exit;
?>

---

您必须尝试使用PHPExcel。 我希望它对你有用

require_once 'PHPExcel/Classes/PHPExcel.php';
$objPHPEx     = new PHPExcel();
$filename     = 'output.xlsx';
$objWorksheet = $objPHPEx->getActiveSheet(0); 
$objPHPEx->getActiveSheet()->getColumnDimension('A')->setWidth(14); 
$objPHPEx->getActiveSheet()->setCellValue('S1',123);
$objWriter = PHPExcel_IOFactory::createWriter($objPHPEx, 'Excel2007');
$objWriter->save('products_inventory_files/' . $filename);

---

您确定生成了8000条记录吗？我宁愿将这些记录保存到临时文件中，并使用

readfile（$tempfile）

作为标题。