导出Excel可能会暂时关闭，或者可能已永久移动到新的网址

Question

I've been created function to export excel this code work in another module

$filename='tajima_sparepart_'.date('Y-m-d_H-i').'.xlsx';
ob_end_clean();
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
header('Content-Disposition: attachment;filename="'.$filename.'"');
header('Cache-Control: max-age=0');
$objWriter = IOFactory::createWriter($this->excel, 'Excel2007');
$objWriter->save('php://output');

but when do export, it's show me :

output might be temporarily down or it may have moved permanently to a new web address.

anyone have solution ?

Answer 1

SOLVED

I forgot to load IOFactory class

$this->load->library('PHPExcel/IOFactory.php');