Setting the column value by number in PHPExcel - php

Question

I've got an array with specifications. I want each specification to become a column. I am having trouble with working this out though.
$specifications = new Specifications();
$columnCounter = 1;
foreach ($specifications as $specificationId => $specification) {
$column = PHPExcel_Cell::getColumnByNumber($columnCounter);
$objPHPExcel
->getActiveSheet()
->getColumnDimension($column)
->setAutoSize(true)
;
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue($column.'1', $specification['value'])
;
$columnCounter++;
}
The PHPExcel::getColumnByNumber() is of course an imaginary function. Though I am wondering how others do this and how best to address this.

Answer 1

$book = new PHPExcel();
$book->setActiveSheetIndex(0);
$sheet = $book->getActiveSheet();
$sheet->setTitle('Sets');
$xls_row = 5;
$xls_col = 3;
foreach($specifications as $specificationId => &$specification)
{
$adr = coord($xls_row, $xls_col);
$sheet->setCellValueExplicit($adr, $specification->title, PHPExcel_Cell_DataType::TYPE_STRING);
$sheet->getColumnDimension(coord_x($xls_col))->setAutoSize(true);
$xls_col++;
}
// convert a 0-based coordinate value into EXCEL B1-format
function coord_x($x)
{
if($x<26) $x = chr(ord('A')+$x);
else
{
$x -= 26;
$c1 = $x % 26;
$c2 = intval(($x - $c1)/26);
$x = chr(ord('A')+$c2).chr(ord('A')+$c1);
}
return $x;
}
// convert X,Y 0-based cell address into EXCEL B1-format pair
function coord($y,$x)
{
return coord_x($x).($y+1);
}