how to get date from excel using PHPExcel library

Question

I am trying to get Date from excel using PHPExcel. But I am not getting date, I am getting string value which is not seconds from 1970 .

Code I have tried is

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Answer 1

For a date, getValue() should return a float, which is the Excel serialized timestamp value for that date/time... I suspect it's your trim() that's casting it to string. The actual value is the number of days since 1/1/1900 (or 1/1/1904 depending on the calendar that the spreadsheet is using).

Calling getFormattedValue() or getCalculatedValue() instead of getValue() should return the date formatted as a human-readable string according to the numberformatmask of the cell.

Alternatively, Sergey's solution tests if the cell has a date/time numberformatmask and calls the appropriate helper method to convert that Excel serialized timestamp to a unix timestamp, then uses the normal PHP date function to format it as human readable according to the value of $format. There's a similar helper method PHPExcel_Shared_Date::ExcelToPHPObject() that will convert an Excel serialized timestamp to a PHP DateTime object