PHPExcel多張

Question

我有一個網站，我想用PHPExcel創建一個報告文件。 我爲第一張紙做了兩個循環，我有一個星期的摘要，另一個週期是一週的每一天。 我找回這個錯誤與我的腳本：

Catchable fatal error: Argument 1 passed to PHPExcel_IOFactory::createWriter() must be an instance of PHPExcel, null given, called in /var/www/reports/generate_reports_settimanale.php on line 79 and defined in /var/www/inc/PHPExcel/IOFactory.php on line 132 

這是我的簡化代碼：

require_once '../inc/PHPExcel.php'; 
require_once '../inc/PHPExcel/IOFactory.php'; 

objPHPExcel = new PHPExcel(); 

     // Set document properties 
     $objPHPExcel->getProperties()->setCreator("Alessandro Minoccheri") 
            ->setLastModifiedBy("Alessandro Minoccheri") 
            ->setTitle("Office 2007 XLSX Test Document") 
            ->setSubject("Office 2007 XLSX Test Document") 
            ->setDescription("Generazione report inverter") 
            ->setKeywords("office 2007 openxml php") 
            ->setCategory(""); 

     $row=1; 
     $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow('0', $row, 'Inverter'); 
     $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow('1', $row, 'Channel'); 


      $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow('0', 1, 'inverter'); 
     $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow('1', 1, 'channel'); 

      $objPHPExcel->setActiveSheetIndex(0); 
     $objWriter3 = PHPExcel_IOFactory::createWriter($objPHPExcel3, 'Excel5'); 

      $week_end = date('Y-m-d 23:59:59', $start + (6 * 86400)); 
      $week_start = date('Y-m-d 00:00:00', $start); 
      $date = $week_start; 
     while (strtotime($date) <= strtotime($week_end)) { 
      $date = date ("Y-m-d", strtotime("+1 day", strtotime($date))); 
      $objWorkSheet = $objPHPExcel->createSheet($date); //Setting index when creating 

      //Write cells 
      $objWorkSheet->setCellValue('A1', 'Hello'.$i) 
        ->setCellValue('B2', 'world!') 
        ->setCellValue('C1', 'Hello') 
        ->setCellValue('D2', 'world!'); 

      // Rename sheet 
      $objWorkSheet->setTitle("test"); 
     } 

      header('Content-Type: application/vnd.ms-excel'); 
     header('Content-Disposition: attachment;filename="report.xls"'); 
     header('Cache-Control: max-age=0'); 
     $objWriter3->save('php://output'); 

我該如何解決這個問題？

Answer 1

$objPHPExcel->setActiveSheetIndex(0); 
$objWriter3 = PHPExcel_IOFactory::createWriter($objPHPExcel3, 'Excel5'); 

由於錯誤說... $ objPHPExcel3尚不存在。到目前爲止，您只在腳本中使用了$ objPHPExcel。你發送一個NULL值。 （並在審查代碼，我沒有看到你曾經創建一個$ objPHPExcel3）