<?php
use PhpOffice\PhpSpreadsheet\Spreadsheet;
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>DATEVALUE</h1>
<h2>Converts a date in the form of text to a serial number.</h2>
<?php
require_once __DIR__ . '/../../../../src/Bootstrap.php';
// Create new PhpSpreadsheet object
$spreadsheet = new Spreadsheet();
$worksheet = $spreadsheet->getActiveSheet();
// Add some data
$testDates = ['26 March 2012', '29 Feb 2012', 'April 1, 2012', '25/12/2012',
'2012-Oct-31', '5th November', 'January 1st', 'April 2012',
'17-03', '03-2012', '29 Feb 2011', '03-05-07',
'03-MAY-07', '03-13-07',
];
$testDateCount = count($testDates);
for ($row = 1; $row <= $testDateCount; ++$row) {
$worksheet->setCellValue('A' . $row, $testDates[$row - 1]);
$worksheet->setCellValue('B' . $row, '=DATEVALUE(A' . $row . ')');
$worksheet->setCellValue('C' . $row, '=B' . $row);
}
$worksheet->getStyle('C1:C' . $testDateCount)
->getNumberFormat()
->setFormatCode('yyyy-mmm-dd');
echo '<hr />';
// Test the formulae
?>
<p><strong>Warning: </strong>The PhpSpreadsheet DATEVALUE() function accepts a wider range of date formats than MS Excel's DATEFORMAT() function.</p>
<table border="1" cellspacing="0">
<tr>
<th>Date String</th>
<th>Formula</th>
<th>Excel DateStamp</th>
<th>Formatted DateStamp</th>
</tr>
<?php
for ($row = 1; $row <= $testDateCount; ++$row) {
echo '<tr>';
echo '<td>', $worksheet->getCell('A' . $row)->getFormattedValue(), '</td>';
echo '<td>', $worksheet->getCell('B' . $row)->getValue(), '</td>';
echo '<td>', $worksheet->getCell('B' . $row)->getFormattedValue(), '</td>';
echo '<td>', $worksheet->getCell('C' . $row)->getFormattedValue(), '</td>';
echo '</tr>';
}
?>
</table>
</body>
</html>