phpexcel PHPExcel_Shared_Date::isDateTime not working - phpexcel

Question

the file is xlsx and the column format is date MM-DD-YYYY
I have tried several different ways to determine if the value is a date.
PHPExcel_Shared_Date::isDateTime just is not working and do not know why. The data is being save in database and is showing the numbers as such:
41137
41618
42206
42076
41137
42206
41137
41988
my code:
$inputFileType = PHPExcel_IOFactory::identify($fullFilePath);
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objReader->setReadDataOnly(false);
$objPHPExcel = $objReader->load($fullFilePath);
$objPHPExcel->setActiveSheetIndex(0);
$worksheetIndex = 1;
$worksheetName = '';
$actualRows = 0;
foreach($objPHPExcel->getWorksheetIterator() as $worksheet)
{
$lineNumber = 1;
$worksheetName = $worksheet->getTitle();
$columnSum = array();
foreach($worksheet->getRowIterator() as $row)
{
$cellIterator = $row->getCellIterator();
$cellIterator->setIterateOnlyExistingCells(true); // Loop all cells, even if it is not set = true else set to false
$columnNumber = 1;
foreach($cellIterator as $cell)
{
$dataValue = $cell->getCalculatedValue();
//$dataValue = $cell->getFormattedValue();
if(!empty($dataValue))
{
if(PHPExcel_Shared_Date::isDateTime($cell))
{
$dataValue = date('Y-m-d H', PHPExcel_Shared_Date::ExcelToPHP($dataValue));
}
else
{
// do something
}
}
}
}
}

Answer 1

Analysing the file, there's a few problems.... it doesn't validate cleanly under the Microsoft's Open XML SDK 2.0 productivity tool for MS Office.
Initial problem (which should trigger a loader error in PHPExcel) is the SheetView Zoom Scale, which should be a minimum value of 1. This problem can by "bypassed" by editing Classes/PHPExcel/Worksheet/SheetView.php and modifying the setZoomScaleNormal() method to avoid throwing the exception if the supplied argument value is out of range.
public function setZoomScaleNormal($pValue = 100)
{
if (($pValue >= 1) || is_null($pValue)) {
$this->zoomScaleNormal = $pValue;
// } else {
// throw new PHPExcel_Exception("Scale must be greater than or equal to 1.");
}
return $this;
}
The second problem is that custom number formats are defined with ids in the range 100-118, but all format ids below 164 are documented as reserved for Microsoft use. Excel itself is obviously more forgiving about breaking its documented rules.
You can resolved this by hacking the Classes/PHPExcel/Reader/Excel2007.php file and modifying the load() method, around line 512, by commenting out the check that tells PHPExcel to use the built-in number formats:
// if ((int)$xf["numFmtId"] < 164) {
// $numFmt = PHPExcel_Style_NumberFormat::builtInFormatCode((int)$xf["numFmtId"]);
// }
or
if ((int)$xf["numFmtId"] < 164 &&
PHPExcel_Style_NumberFormat::builtInFormatCodeIndex((int)$xf["numFmtId"]) !== false) {
$numFmt = PHPExcel_Style_NumberFormat::builtInFormatCode((int)$xf["numFmtId"]);
}
There are also issues with font size definitions, but these won't prevent the file from loading