PHPExcel Make first row bold

I am trying to make cells in first row are bold.

This is the method I have created for that purpose.

function ExportToExcel($tittles,$excel_name)
 {
  $objPHPExcel = new PHPExcel();
  $objRichText = new PHPExcel_RichText();
  // Set properties
  $objPHPExcel->getProperties()->setCreator("SAMPLE1");
  $objPHPExcel->getProperties()->setLastModifiedBy("SAMPLE1");
  $objPHPExcel->getProperties()->setTitle("SAMPLE1");
  $objPHPExcel->getProperties()->setSubject("SAMPLE1");
  $objPHPExcel->getProperties()->setDescription("SAMPLE1");


  // Add some data
  $objPHPExcel->setActiveSheetIndex(0);

  $letters = range('A','Z');
  $count =0;
  $cell_name="";
  foreach($tittles as $tittle)
  {
   $cell_name = $letters[$count]."1";
   $count++;
   $value = $tittle;
   $objPHPExcel->getActiveSheet()->SetCellValue($cell_name, $value);
   // Make bold cells
   $objPHPExcel->getActiveSheet()->getStyle($cell_name)->getFont()->setBold(true);
  }
  // Save Excel 2007 file
  $objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
  //$objWriter->save(str_replace('.php', '.xlsx', __FILE__));
  $objWriter->save($excel_name.".xlsx");
 }

The problem is in output excel file the cells are not bold.

Try this for range of cells:

$from = "A1"; // or any value
$to = "B5"; // or any value
$objPHPExcel->getActiveSheet()->getStyle("$from:$to")->getFont()->setBold( true );

or single cell

$cell_name = "A1";
$objPHPExcel->getActiveSheet()->getStyle( $cell_name )->getFont()->setBold( true );

hope that helps

Try this

$objPHPExcel->getActiveSheet()->getStyle('A1:D1')->getFont()->setBold(true);

$objPHPExcel->getActiveSheet()->getStyle('1:1')->getFont()->setBold(true);

That way you get the complete first row

Assuming headers are on the first row of the sheet starting at A1, and you know how many of them there are, this was my solution:

$header = array(
    'Header 1',
    'Header 2'
);
    
$objPHPExcel = new PHPExcel();
$objPHPExcelSheet = $objPHPExcel->getSheet(0);
$objPHPExcelSheet->fromArray($header, NULL);
$first_letter = PHPExcel_Cell::stringFromColumnIndex(0);
$last_letter = PHPExcel_Cell::stringFromColumnIndex(count($header)-1);
$header_range = "{$first_letter}1:{$last_letter}1";
$objPHPExcelSheet->getStyle($header_range)->getFont()->setBold(true);

Use this:

$sheet->getStyle('A1:'.$sheet->getHighestColumn().'1')->getFont()->setBold(true);

These are some tips to make your cells Bold, Big font, Italic

Let's say I have columns from A to L

A1 - is your starting cell

L1 - is your last cell

$objPHPExcel->getActiveSheet()->getStyle('A1:L1')->getFont()->setBold(true);
$objPHPExcel->getActiveSheet()->getStyle('A1:L1')->getFont()->setSize(16);
$objPHPExcel->getActiveSheet()->getStyle('A1:L1')->getFont()->setItalic(true);

$objPHPExcel->getActiveSheet()->getStyle("A1:".$objPHPExcel->getActiveSheet()->getHighestDataColumn()."1")->getFont()->setBold(true);

I found this to be a working solution, you can replace the two instances of 1 with the row number. The HighestDataColumn function returns for example C or Z, it gives you the last/highest column that's in the sheet containing any data. There is also getHighestColumn(), that one would include cells that are empty but have styling or are part of other functionality.

This iterates through a variable number of columns of a particular row, which in this case is the 1st row:

$rownumber = 1;
$row = $this->objPHPExcel->getActiveSheet()->getRowIterator($rownumber)->current();

$cellIterator = $row->getCellIterator();
$cellIterator->setIterateOnlyExistingCells(false);

foreach ($cellIterator as $cell) {
    $cell->getStyle()->getFont()->setBold(true);
}

The simple way to make bold headers:

$row = 1;
foreach($tittles as $index => $tittle) {
    $worksheet->getStyleByColumnAndRow($index + 1, $row)->getFont()->setBold(true);
    $worksheet->setCellValueByColumnAndRow($index + 1, $row, $tittle);
}

Try this

$objPHPExcel = new PHPExcel();
$objPHPExcel->getProperties()->setCreator("Maarten Balliauw")
->setLastModifiedBy("Maarten Balliauw")
->setTitle("Office 2007 XLSX Test Document")
->setSubject("Office 2007 XLSX Test Document")
->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
->setKeywords("office 2007 openxml php")
->setCategory("Test result file");
$objPHPExcel->setActiveSheetIndex(0);
$sheet = $objPHPExcel->getActiveSheet();
$sheet->setCellValue('A1', 'No');
$sheet->setCellValue('B1', 'Job ID');
$sheet->setCellValue('C1', 'Job completed Date');
$sheet->setCellValue('D1', 'Job Archived Date');
$styleArray = array(
'font' => array(
'bold' => true
)
);
$sheet->getStyle('A1')->applyFromArray($styleArray);
$sheet->getStyle('B1')->applyFromArray($styleArray);
$sheet->getStyle('C1')->applyFromArray($styleArray);
$sheet->getStyle('D1')->applyFromArray($styleArray);
$sheet->getPageSetup()->setRowsToRepeatAtTopByStartAndEnd(1, 1);

This is give me output like below link.(https://www.screencast.com/t/ZkKFHbDq1le)

You can try

$objPHPExcel->getActiveSheet()->getStyle(1)->getFont()->setBold(true);