<?php error_reporting(E_ALL); set_time_limit(0); date_default_timezone_set('Europe/London'); ?> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>PhpSpreadsheet Calculation Examples</title> </head> <body> <h1>DATE</h1> <h2>Returns the serial number of a particular date.</h2> <?php require_once __DIR__ . '/../../../../src/Bootstrap.php'; // Create new PhpSpreadsheet object $spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet(); $worksheet = $spreadsheet->getActiveSheet(); // Add some data $testDates = [[2012, 3, 26], [2012, 2, 29], [2012, 4, 1], [2012, 12, 25], [2012, 10, 31], [2012, 11, 5], [2012, 1, 1], [2012, 3, 17], [2011, 2, 29], [7, 5, 3], [2012, 13, 1], [2012, 11, 45], [2012, 0, 0], [2012, 1, 0], [2012, 0, 1], [2012, -2, 2], [2012, 2, -2], [2012, -2, -2], ]; $testDateCount = count($testDates); $worksheet->fromArray($testDates, null, 'A1', true); for ($row = 1; $row <= $testDateCount; ++$row) { $worksheet->setCellValue('D' . $row, '=DATE(A' . $row . ',B' . $row . ',C' . $row . ')'); $worksheet->setCellValue('E' . $row, '=D' . $row); } $worksheet->getStyle('E1:E' . $testDateCount) ->getNumberFormat() ->setFormatCode('yyyy-mmm-dd'); echo '<hr />'; // Test the formulae ?> <table border="1" cellspacing="0"> <tr> <th colspan="3">Date Value</th> <th rowspan="2" valign="bottom">Formula</th> <th rowspan="2" valign="bottom">Excel DateStamp</th> <th rowspan="2" valign="bottom">Formatted DateStamp</th> </tr> <tr> <th>Year</th> <th>Month</th> <th>Day</th> <tr> <?php for ($row = 1; $row <= $testDateCount; ++$row) { echo '<tr>'; echo '<td>', $worksheet->getCell('A' . $row)->getFormattedValue(), '</td>'; echo '<td>', $worksheet->getCell('B' . $row)->getFormattedValue(), '</td>'; echo '<td>', $worksheet->getCell('C' . $row)->getFormattedValue(), '</td>'; echo '<td>', $worksheet->getCell('D' . $row)->getValue(), '</td>'; echo '<td>', $worksheet->getCell('D' . $row)->getFormattedValue(), '</td>'; echo '<td>', $worksheet->getCell('E' . $row)->getFormattedValue(), '</td>'; echo '</tr>'; } ?> </table> </body> </html>