Error while opening generated excel file in php codeigniter using phpExcel

Question

This how look generated excel file: with the warning messages: Message: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? Filename: Shared/OLE.php

This is comes in excel file - þÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ @€Åfôí Ö@€Åfôí ÖþÿÕÍÕœ.“—+,ù®0¼HPX`hp

I have tried with iconv(mb_detect_encoding($result, mb_detect_order(), true), "UTF-8", $result); coversion as well.

This is the code:

 public function exportExcel() {
    $this->load->library('excel');
    $registrationIDArr = $_POST["registrationID"];
    $resigtrationIDStr = implode(",",$registrationIDArr);
    $currDate = date("d-m-Y_H_i");
    $file = 'VolunteerRegistration_'.$currDate.'.xls';
    $objPHPExcel = new PHPExcel();
    $objPHPExcel->setActiveSheetIndex(0);
    $objPHPExcel->getActiveSheet()->setTitle('Volunteer Details');
    $style = array('font' => array('size' => 12,'bold' => true));

    $objPHPExcel->getActiveSheet()->getStyle('A1:B1')->applyFromArray($style);

    $objPHPExcel->getActiveSheet()->setCellValue('A1', 'Name');
    $objPHPExcel->getActiveSheet()->setCellValue('B1', 'Email');

    $objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(25);
    $objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(25);

    $rows = 2;

    $result = $this->getVolunteerDetailsForExcelExport($resigtrationIDStr);

    foreach($result as $row){ 
      $objPHPExcel->getActiveSheet()->setCellValue('A'.$rows, $row->name);
      $objPHPExcel->getActiveSheet()->setCellValue('B'.$rows, $row->email);
      $rows++;  

    }


    header('Content-Type: application/vnd.ms-excel; charset=UTF-8');
    header('Content-Disposition: attachment; filename="'.$file.'"');



    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');


   ob_end_clean();
   ob_start();
    $objWriter->save('php://output');
     exit;
}

public function getVolunteerDetailsForExcelExport($registrationIDStr){

    $this->db->select("CONCAT(fname,' ',mname,' ',lname) AS name, email");
    $this->db->from('UserRegistration');
    $wherelist = "id in($registrationIDStr)";
    $this->db->where($wherelist);
    $query= $this->db->get();

    $result = $query->result();

    return $result;

} 

Answer 1

In PHPExcel/Shared/OLE.php, function _readPpsWks($blockId) , there is an error in the for / switch structure.
In the default case of the switch, you write continue; . But this does NOT exit the for loop. It only exits the "switch" structure, and continue under. You have to write: continue 2; , at line number 290.

default:
    continue 2;

Answer 2

Please try this, it might helps. This works for me.

require 'PHPExcel.php';
$objPHPExcel = new PHPExcel();
/*CODE for excel*/
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="file.xls"');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');