Codeigniter lorsque le fichier de téléchargement reçoit un message d'avertissement

Question

Je peux télécharger un fichier PHPExcel OK maintenant. Comment jamais pour une raison quelconque je reçois une alerte de sécurité disant que ce fichier peut être des virus

Question Dans mon code ci-dessous comment puis-je faire en sorte que cela ne cause pas de message à apparaître.

Merci pour votre temps.

<?php 

class Events extends MX_Controller { 

    public function generate_excel() { 

     $query = $this->db->get('event'); 
     $excelresults = $query->result_array(); 

     require (APPPATH . 'third_party/PHPExcel-1.8/Classes/PHPExcel.php'); 
     require (APPPATH . 'third_party/PHPExcel-1.8/Classes/PHPExcel/Writer/Excel2007.php'); 

     $objPHPExcel = new PHPExcel(); 

     $objPHPExcel->getProperties()->setCreator(""); 
     $objPHPExcel->getProperties()->setLastModifiedBy(""); 

     $objPHPExcel->getProperties()->setSubject(""); 
     $objPHPExcel->getProperties()->setCreator(""); 
     $objPHPExcel->getProperties()->setDescription(""); 

     $objPHPExcel->setActiveSheetIndex(0); 

     $objPHPExcel->getActiveSheet()->SetCellValue("A1", 'Event'); 
     $objPHPExcel->getActiveSheet()->SetCellValue("B1", 'Event Title'); 
     $objPHPExcel->getActiveSheet()->SetCellValue("C1", 'Event Date'); 
     $objPHPExcel->getActiveSheet()->SetCellValue("D1", 'Event Start Time'); 

     foreach (range('A', $objPHPExcel->getActiveSheet()->getHighestDataColumn()) as $col) { 
     $objPHPExcel->getActiveSheet() 
       ->getColumnDimension($col) 
       ->setAutoSize(true); 
     } 

     $excelrow = 2; 

     foreach ($excelresults as $excelresult => $excelvalue) { 
      $objPHPExcel->getActiveSheet()->SetCellValue("A" . $excelrow, $excelvalue['event']); 
      $objPHPExcel->getActiveSheet()->SetCellValue("B" . $excelrow, $excelvalue['event_title']); 
      $objPHPExcel->getActiveSheet()->SetCellValue("C" . $excelrow, $excelvalue['event_date']); 
      $objPHPExcel->getActiveSheet()->SetCellValue("D" . $excelrow, $excelvalue['event_start_time']); 

      $excelrow++; 
     } 

     $filename = 'Bowling-Events-For-' . date('Y') . '.xlsx'; 
     $objPHPExcel->getProperties()->setTitle("Riwaka Bowling Club Events"); 

     header("Content-Type: application/force-download"); 
     header("Content-Type: application/octet-stream"); 
     header("Content-Type: application/download"); 
     header("Content-Disposition: attachment; filename=".$filename.""); 
     header("Content-Transfer-Encoding: binary"); 
     header("Pragma: no-cache"); 
     header("Expires: 0"); 
     $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007'); 
     $objWriter->save('php://output'); 

     exit(); 

    } 
} 

Answer 1

Pour votre information

Essayez ces en-têtes et

header("Content-Type: application/vnd.ms-excel; charset=utf-8"); # Important 
header("Content-Disposition: attachment; filename=abc.xls"); 
header("Expires: 0"); 
header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
header("Cache-Control: private",false);