user4035 user4035 - 1 year ago 664
PHP Question

PHPExcel: how to set date format for a cell

I need to save a date to Excel file, it must be output in format "dd/mm/yyyy" (or the local date format of the user), and to be treated as a date so a column of them could be sorted correctly.

Here is the code:

$objPHPExcel = new PHPExcel();
$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_in_memory_gzip;

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

//I didn't find dd/mm/yyyy format, so I used yyyy-mm-dd
$sheet->setCellValueByColumnAndRow(0, 1, "2014-10-16");
$sheet->getStyleByColumnAndRow(0, 1)

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');

It creates a file, but instead of my local date format I see: "2014-10-16" and the format of the cell is "All formats" -> "yyyy-mm-dd". I wanted it to be parsed and output in my local date format.

I looked into the source code of
, and found many date formats:

const FORMAT_DATE_YYYYMMDD2 = 'yyyy-mm-dd';
const FORMAT_DATE_YYYYMMDD = 'yy-mm-dd';
const FORMAT_DATE_DDMMYYYY = 'dd/mm/yy';
const FORMAT_DATE_DMYSLASH = 'd/m/y';
const FORMAT_DATE_DMYMINUS = 'd-m-y';

But I am not sure what to use. How can I achieve the desired goal?

Answer Source
$sheet->setCellValueByColumnAndRow(0, 1, "2014-10-16");

Sets a string value in the cell, not a date. Just because you interpret that as a date, doesn't mean that computer programs automagically interpret it as a date.

Look at the date Examples in the PHPExcel Documentation and Examples, and you'll see that you need to set the cell value to a MS Excel serialized timestamp (a float value of the number of days since 1st January 1900). You can use the PHPExcel functions like PHPExcel_Shared_Date::PHPToExcel() to convert human dates/PHP DateTime objects/Unix timestamps to MS Excel Serialized timestamps.

$sheet->setCellValueByColumnAndRow(0, 1, PHPExcel_Shared_Date::PHPToExcel( '2014-10-16' ));

Once you've stored the value as a timestamp, you can then apply whatever date format mask you want to that cell to get your desired formatting

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