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<?php
declare(strict_types=1);
namespace PhpOffice\PhpSpreadsheetTests\Reader\Xlsx;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
class MySpreadsheet extends Spreadsheet
{
public function calcSquare(string $cellAddress): float|int|string
$value = $this->getActiveSheet()
->getCell($cellAddress)
->getValue();
if (is_numeric($value)) {
return $value * $value;
}
return '#VALUE!';
PHPOffice /
PhpSpreadsheet
