Copy and paste styles from one row to other

Question

I'm using PHP Excel to create an Excel using a template Excel file. The problem is I have a datagrid and which I styled the header and first row in template. Here how it looks like:

The top leftmost coordinate is C49.

If I have 100 rows, I need to copy style of first row and paste it 100 times. Here is my code

$cstart = 2;
$rstart = 49;
$count = 1;
$input = $worksheet->getStyle(num2char($cstart) . $rstart);

foreach ($b_data['rawData'] as $value) {
    $worksheet->setCellValueByColumnAndRow($cstart, $rstart, $count++)
            ->setCellValueByColumnAndRow($cstart + 1, $rstart, $value['key'])
            ->setCellValueByColumnAndRow($cstart + 5, $rstart, $value['value']);
    $interval = num2char($cstart) . $rstart . ':' . num2char($cstart+5) . $rstart;
    $worksheet->duplicateStyle($input, $interval);

    $rstart++;
}

function num2char($num) {
    $numeric = $num % 26;
    $letter = chr(65 + $numeric);
    $num2 = intval($num / 26);
    if ($num2 > 0) {
        return num2char($num2 - 1) . $letter;
    } else {
        return $letter;
    }
}

However, I had the following:

but what I expected is:

Is it bug or am I doing something wrong?

Answer 1

As Mark pointed out in the comments; a merged cell is structural, not style. So copying the style will not automatically copy the merged cells.

There is a feature request to be able to duplicate entire rows including merged cells

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One way to deal with this is to check if the cells are part of a merge using the isInMergeRange() function like this:

$workbook = new PHPExcel;              // prepare the workbook 
$sheet = $workbook->getActiveSheet();   // get the sheet
$sheet->mergeCells('A1:E1');           // merge some cells for tesing
$cell = $sheet->getCell('A1');      // get a cell to check if it is merged
$cell->isInMergeRange()            // check if cell is merged

^This returns a Boolean value indicating if it is part of a merged cell.

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Another function that may interest you is the isMergeRangeValueCell() function:

$cell->isMergeRangeValueCell()

^This returns a Boolean value indicating it is part of a merged cell and the cell contains the value for the merged range; it returns false in all other situations.