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我正在使用PHPExcel和CodeIgniter来生成我正在制作的项目的报告。我还是PHPExcel的新手。我做的第一件事就是将PHPExcel文件夹和PHPExcel.php文件放入应用程序的libraries文件夹中。PHPExcel:调用成员函数setActiveSheetIndex()null
现在,当我尝试运行该程序时,它告诉我一个错误,即“调用null上的成员函数setActiveSheetIndex()”。
所以我试图检查库是否真的加载在应用程序上。所以我试过这个:'
if(class_exists('PHPExcel')){
echo "yes";
} else {
echo "no";
}
它提醒“是”。这意味着库被加载。但我不知道为什么函数返回null。
这里是我的控制器代码:
public function excel_report1()
{
$this->load->library('PHPExcel');
$this->excel->setActiveSheetIndex(0);
$this->excel->getActiveSheet()->setTitle('Users list');
$startDate = $this->input->post('fromDate');
$endDate = $this->input->post('toDate');
$data = $this->KudosModel->getDateRange($startDate,$endDate);
$styleArray = array(
'font' => array(
'bold' => true,
'size' => 15,
));
$styleArray2 = array(
'font' => array(
'size' => 15,
));
$this->excel->getActiveSheet()->mergeCells('A1:B1');
$this->excel->getActiveSheet()->setCellValue('A1', 'TOTAL KUDOS COUNT ('.$startDate.' - '.$endDate.')');
$this->excel->getActiveSheet()->getStyle('A1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$this->excel->getActiveSheet()->getStyle('A1')->applyFromArray(array('fill' => array('type' => PHPExcel_Style_Fill::FILL_SOLID,'color' => array('rgb' => 'FF0000'))));
$this->excel->getActiveSheet()->getStyle('A1:B1')->applyFromArray($styleArray);
$this->excel->getActiveSheet()->getStyle('A2:D2')->applyFromArray($styleArray);
$this->excel->getActiveSheet()->getColumnDimension('A')->setWidth(30);
$this->excel->getActiveSheet()->getColumnDimension('B')->setWidth(30);
$this->excel->getActiveSheet()->setCellValue('A2', 'Month and Year');
$this->excel->getActiveSheet()->setCellValue('B2', 'Kudos Count');
$row = 3;
foreach($data as $r){
$this->excel->getActiveSheet()->fromArray(array($r->emp_id, $r->emp_stat, $r->isActive, $r->dateStarted), null, 'A'.$row);
$this->excel->getActiveSheet()->getStyle('A'.$row.':B'.$row)->applyFromArray($styleArray2);
$row++;
}
ob_end_clean();
date_default_timezone_set("Asia/Manila");
$timestamp=date("Y-m-d-His");
$filename='KudosCount.xls';
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="'.$filename.'"');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($this->PHPExcel, 'Excel2007');
//$objWriter->save('php://output');
$objWriter->save($filename);
exit();
}
如果有人知道这事。请让我知道。先谢谢你。
所以如果我不使用你说的话。我应该这样做,像$ this-> PHPExcel-> setActiveSheetIndex(0)?现在错误消失了。但现在它说现场不能到达。 – Azis
传递给PHPExcel_IOFactory :: createWriter()的参数1必须是PHPExcel的实例,null给出 – Azis
感谢您帮助bro。这解决了我的问题。祝你有美好的一天 – Azis