php - 使用php在excel中导出报告时，它可以在本地工作，但不能在服务器上工作？

Question

我正在尝试使用 php 导出报告。它在本地主机上可以正常工作，但是当我在服务器上运行它时，它不起作用并给出如下所示的输出。(我使用的所有未在此处显示的变量都被声明为全局变量，因此变量声明中不存在问题.) 输出:

我尝试过的代码是:

 $arrayissue = array();

            $count = 0;
            $screenshot_name = '';



            $cycle = $_SESSION['Cycle'];
            $objPHPExcel = new PHPExcel();
            $query2 = "SELECT Cycle_name FROM cycle_master WHERE Cycle_id='$cycle'";
            $result2 = $conn->query($query2);
            $row12 = mysqli_fetch_array($result2);


            $ews = $objPHPExcel->getSheet(0);
            $ews->setCellValue('a1', 'This is the Result For : ' . $row12[0]);
            $rowCount = 2;



            $title = 'a1:aj1';
            $header = 'a2:aj2';

            $objPHPExcel->getActiveSheet()->getStyle($title)->getFill()->setFillType(PHPExcel_Style_Fill::FILL_SOLID)->getStartColor()->setARGB('A9F5E1');

            $objPHPExcel->getActiveSheet()->getStyle($header)->getFill()->setFillType(PHPExcel_Style_Fill::FILL_SOLID)->getStartColor()->setARGB('FFFF00');

            $style = array(
                'font' => array('bold' => true,),
                'alignment' => array('horizontal' => PHPExcel_Style_Alignment::HORIZONTAL_CENTER,),
            );

            $objPHPExcel->getActiveSheet()->getStyle($header)->applyFromArray($style);
            $objPHPExcel->getActiveSheet()->getStyle(
                    'A2:' .
                    $objPHPExcel->getActiveSheet()->getHighestColumn() .
                    $objPHPExcel->getActiveSheet()->getHighestRow()
            )->getBorders()->getAllBorders()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
            $objPHPExcel->getDefaultStyle()->getAlignment()->setWrapText(true);
            $styleArray = array(
                'font' => array(
                    'bold' => FALSE,
                    // 'color' => array('rgb' => 'FF0000'),
                    'size' => 10,
                    'name' => 'Calibri'
            ));
            $limit = $objPHPExcel->getActiveSheet()->getHighestDataColumn();
            echo $limit;
            for ($col = 'A'; $col != $limit; $col++) {

                $objPHPExcel->getActiveSheet()->getColumnDimension($col)->setWidth(20);
                $objPHPExcel->getActiveSheet()->getStyle($col)->applyFromArray($styleArray);
            }



            $queryforissue = "Select Issue_name from tmtool.project_issue_master where Project_id IN(Select Project_id from product_master Where Product_id='$productid')";
            $resultforissue = mysqli_query($conn, $queryforissue) or die(mysqli_error($conn));



            $countforissue = 0;
            $customeTitle = array();
            $customTitle1 = array('Execution ID', 'TC ID', 'Partner Name', 'Product Name', 'Test URL', 'Issue');
            $customTitle2 = array('Circle Name', 'Mobile Number', 'Date', 'Time', 'Screen Shot Name', 'Comment');
            while ($rowissue = mysqli_fetch_array($resultforissue)) {
                array_push($arrayissue, $rowissue['Issue_name']);
                $countforissue++;
            }


            $customTitle3 = array_merge($customTitle1, $arrayissue);
            $customTitle = array_merge($customTitle3, $customTitle2);


            $alph = 'A';
            foreach ($customTitle as $value) {
                $objPHPExcel->getActiveSheet()->SetCellValue($alph . $rowCount, $value);
                $alph++;
            }
            $rowCount++;

            if ($startdate != '' && $enddate != '') {
                $queryresult = "SELECT testcase_master.`Testcase_id`,CONVERT(SUBSTRING_INDEX(testcase_master.`Testcase_id`,'_', -1),UNSIGNED INTEGER) as num ,testcase_master.`Testcase_title`,testcase_master.`Subscriber_type`,testcase_master.`Precondition`,testcase_master.`Activation_mode`,test_result_url.`Test_id`,test_result_url.`Assign_to`,test_result_url.`Circle_name`,test_result_url.`Performed_date`,test_result_url.`Status`,test_result_url.`Comment`,test_result_url.`Screen_shot_name`,test_result_url.`Device_used`,test_result_url.`Simcard_no`,test_result_url.`Time`,test_result_url.`Updated_date`,test_result_url.`Updated_time`,test_result_url.`Updated_by`  FROM tmtool.test_result_url LEFT JOIN tmtool.testcase_master  ON test_result_url.`Testcase_id`=testcase_master.`Testcase_id` WHERE testcase_master.`Product_id` = '$productid' AND (test_result_url.`Performed_date` BETWEEN '$startdate' AND '$enddate') AND testcase_master.`Testcase_id` IN (SELECT Testcase_id FROM assigned_testsuite_testcase WHERE Testsuite_id IN (SELECT Testsuite_id FROM testsuite_master WHERE Cycle_id = '$cycle')) order by num";
            } else {
                $queryresult = "SELECT testcase_master.`Testcase_id`,CONVERT(SUBSTRING_INDEX(testcase_master.`Testcase_id`,'_', -1),UNSIGNED INTEGER) as num ,testcase_master.`Testcase_title`,testcase_master.`Subscriber_type`,testcase_master.`Precondition`,testcase_master.`Activation_mode`,test_result_url.`Test_id`,test_result_url.`Assign_to`,test_result_url.`Circle_name`,test_result_url.`Performed_date`,test_result_url.`Status`,test_result_url.`Comment`,test_result_url.`Screen_shot_name`,test_result_url.`Device_used`,test_result_url.`Simcard_no`,test_result_url.`Time`,test_result_url.`Updated_date`,test_result_url.`Updated_time`,test_result_url.`Updated_by`  FROM tmtool.test_result_url LEFT JOIN tmtool.testcase_master  ON test_result_url.`Testcase_id`=testcase_master.`Testcase_id` WHERE testcase_master.`Product_id` = '$productid' AND testcase_master.`Testcase_id` IN (SELECT Testcase_id FROM assigned_testsuite_testcase WHERE Testsuite_id IN (SELECT Testsuite_id FROM testsuite_master WHERE Cycle_id = '$cycle')) order by num";
            }



            $resultquery = mysqli_query($conn, $queryresult) or die(mysqli_error($conn));



            while ($row = mysqli_fetch_array($resultquery)) {
                $objPHPExcel->getActiveSheet()->SetCellValue('A' . $rowCount, $row['Test_id']);
                $objPHPExcel->getActiveSheet()->SetCellValue('B' . $rowCount, $row['Testcase_id']);
                $objPHPExcel->getActiveSheet()->SetCellValue('C' . $rowCount, $row['Precondition']);
                $objPHPExcel->getActiveSheet()->SetCellValue('D' . $rowCount, $row['Activation_mode']);
                $objPHPExcel->getActiveSheet()->SetCellValue('E' . $rowCount, $row['Testcase_title']);
                $objPHPExcel->getActiveSheet()->SetCellValue('F' . $rowCount, $row['Status']);


                for ($i = 0, $alpha2 = 'G'; $i < $countforissue; $i++, $alpha2++) {

                    $querygetResult = "Select $arrayissue[$i] from test_result_url where Test_id='$row[Test_id]'";
                    $getResult = mysqli_query($conn, $querygetResult) or die('Error querying database');
                    $rowResult = mysqli_fetch_array($getResult);

                    $objPHPExcel->getActiveSheet()->SetCellValue($alpha2 . $rowCount, $rowResult[0]);
                }

                $objPHPExcel->getActiveSheet()->SetCellValue($alpha2 . $rowCount, $row['Circle_name']);
                $alpha2++;
                $objPHPExcel->getActiveSheet()->SetCellValue($alpha2 . $rowCount, $row['Simcard_no']);
                $alpha2++;
                $objPHPExcel->getActiveSheet()->SetCellValue($alpha2 . $rowCount, $row['Performed_date']);
                $alpha2++;
                $objPHPExcel->getActiveSheet()->SetCellValue($alpha2 . $rowCount, $row['Time']);
                $alpha2++;
                $objPHPExcel->getActiveSheet()->SetCellValue($alpha2 . $rowCount, $row['Screen_shot_name']);
                $alpha2++;
                $objPHPExcel->getActiveSheet()->SetCellValue($alpha2 . $rowCount, $row['Comment']);


                $rowCount++;
            }

            unset($alpha2);
            $objPHPExcel->getActiveSheet()->setTitle("Product Wise");
            header('Content-Type: application/vnd.openxmlformats-   officedocument.spreadsheetml.sheet');
            header('Content-Disposition: attachment;filename="TestResults.xlsx"');
            header('Cache-Control: max-age=0');

            $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
            ob_end_clean();
            $objWriter->save('php://output');

Answer 1

为自己找到答案。

1) 有一个 echo 语句将“A”发送到 header.so 删除 echo
2)当我删除该代码后，ob_end_clean() 会产生问题，它工作正常。

感谢所有试图帮助我的人。