Php Excel DateStamd格式化日期

Question

我正在阅读一个xlsx文件并且字段在DateStamd中我想将它们转换为日期数据我在这里留下我的进展

Excel A1 = 43160 转换日期= 01/03/2018

enter code here需要'../PHPExcel-1.8/Classes/PHPExcel/IOFactory.php';  要求'../ cnx / conection.php';

$objPHPExcel = PHPExcel_IOFactory::load('../../date.xlsx');

$objPHPExcel->setActiveSheetIndex(0);
$numRows = $objPHPExcel->setActiveSheetIndex(0)->getHighestRow();
for ($i = 2; $i <= $numRows; $i++) {

    $pm = $objPHPExcel->getActiveSheet()->getCell('A'.$i)->getValue();
  echo  $pm;

    $sql = "INSERT INTO regfecha (reg_fecha) VALUES('$pm')";
    $result = $mysqli->query($sql);
}

` 这里我有另一个例子，我不知道如何应用它

`

DATEVALUE

将文本形式的日期转换为序列号。

`

<?php

set_include_path(get_include_path() . PATH_SEPARATOR . '../../../../Classes/');

include 'PHPExcel.php';

$objPHPExcel = new PHPExcel();
$worksheet = $objPHPExcel->getActiveSheet();

// Add some data
$testDates = array(	'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 PHPExcel 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>';
	}
	?>