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39 lines
1.4 KiB
39 lines
1.4 KiB
<?php
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use PhpOffice\PhpSpreadsheet\Calculation\Financial\Constants as FinancialConstants;
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use PhpOffice\PhpSpreadsheet\Spreadsheet;
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require __DIR__ . '/../../Header.php';
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$helper->log('Returns the number of periods required to pay off a loan, for a constant periodic payment');
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$helper->log('and a constant interest rate.');
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// Create new PhpSpreadsheet object
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$spreadsheet = new Spreadsheet();
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$worksheet = $spreadsheet->getActiveSheet();
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// Add some data
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$arguments = [
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['Interest Rate', 0.04, 0.06],
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['Payments per Year', 1, 4],
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['Payment Amount', -6000.00, -2000],
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['Present Value', 50000, 60000],
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['Future Value', null, 30000],
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['Payment Type', null, FinancialConstants::PAYMENT_BEGINNING_OF_PERIOD],
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];
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// Some basic formatting for the data
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$worksheet->fromArray($arguments, null, 'A1');
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$worksheet->getStyle('B1:C1')->getNumberFormat()->setFormatCode('0.00%');
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$worksheet->getStyle('B3:C5')->getNumberFormat()->setFormatCode('$#,##0.00');
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// Now the formula
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$worksheet->setCellValue('B8', '=NPER(B1/B2, B3, B4)');
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$helper->log($worksheet->getCell('B8')->getValue());
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$helper->log('NPER() Result is ' . $worksheet->getCell('B8')->getFormattedValue());
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$worksheet->setCellValue('C8', '=NPER(C1/C2, C3, C4, C5, C6)');
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$helper->log($worksheet->getCell('C8')->getValue());
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$helper->log('NPER() Result is ' . $worksheet->getCell('C8')->getFormattedValue());
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