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  1. Please use this formula to change from Excel date to Unix date, then you can use "gmdate" to get the real date in PHP: UNIX_DATE = (EXCEL_DATE - 25569) * 86400 and to convert from Unix date to Excel date, use this formula: EXCEL_DATE = 25569 + (UNIX_DATE / 86400)

  2. 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).

  3. Excel functions that return a Date and Time value. Any of the Date and Time functions that return a date value in Excel can return either an Excel timestamp or a PHP timestamp or DateTime object. It is possible for scripts to change the data type used for returning date values by calling the ...

  4. 28 kwi 2023 · In this tutorial, we explored how to read and write data from and to Excel files using PHP and the PhpSpreadsheet library. We covered how to load an Excel file, read data from it, and write data back to a new Excel file. This should give you a solid foundation for working with Excel files in your PHP projects.

  5. 4 maj 2021 · You can use setFormat() to format a date, ONLY IF the date is passed as an Excel numeric (int) or (float) date value. Several PHP libraries can convert a PHP date to an Excel numeric date value. Since our project uses both Spout and PhpSpreadsheet, we use PhpSpreadsheet’s Date::PHPToExcel() to convert a Carbon value to an Excel numeric value.

  6. 28 maj 2024 · With PHPExcel, you may make new worksheets, enter data into particular cells or ranges, and format the cells as required. This makes it simple to automate tedious operations or create reports by enabling you to dynamically create sophisticated Excel files from PHP code.

  7. docs.laravel-excel.com › 2 › importDates - Laravel Excel

    Dates. By default the dates will be parsed as a Carbon object. You can disable date formatting completly inside import.php by setting dates.enabled to false. To enable/disable date formatting for a single import, use ->formatDates($boolean, $format) // Format the dates. $reader->formatDates(true); // Disable date formatting.

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