How can the code be optimized to ensure all 9 column headers (Laufnummer, Datum, Name, Vorname, Strasse, Hausnr, PLZ, Ort, EMail) are successfully written to the Excel table?

The issue can be solved by ensuring that all 9 column headers are correctly specified in the PHP code when writing to the Excel table. Each column header should be added to the Excel file before writing any data to ensure that the data is properly organized. This can be achieved by using the PHPExcel library to create the Excel file and set the column headers accordingly. 

// Include PHPExcel library
require_once 'PHPExcel.php';

// Create new PHPExcel object
$objPHPExcel = new PHPExcel();

// Set column headers
$objPHPExcel->setActiveSheetIndex(0)
    ->setCellValue('A1', 'Laufnummer')
    ->setCellValue('B1', 'Datum')
    ->setCellValue('C1', 'Name')
    ->setCellValue('D1', 'Vorname')
    ->setCellValue('E1', 'Strasse')
    ->setCellValue('F1', 'Hausnr')
    ->setCellValue('G1', 'PLZ')
    ->setCellValue('H1', 'Ort')
    ->setCellValue('I1', 'EMail');

// Write data to Excel table
// Add your code here to write data to the Excel table

// Save Excel file
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save('output.xlsx');

Keywords

PHP Excel headers optimization writing

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