15:17:32 Create new PHPExcel object<br />15:17:32 Set document properties<br />15:17:32 Add data<br />15:17:32 Set data validation<br />15:17:32 Write to Excel2007 format<br /><br />
<b>Warning</b>:  ZipArchive::close(): Failure to create temporary file: Permission denied in <b>/var/www/html/frontenndposystem/po-system-new/back-end/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>388</b><br />
<br />
<b>Fatal error</b>:  Uncaught PHPExcel_Writer_Exception: Could not close zip file /var/www/html/frontenndposystem/po-system-new/back-end/vendor/phpoffice/phpexcel/Examples/15datavalidation.xlsx. in /var/www/html/frontenndposystem/po-system-new/back-end/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:389
Stack trace:
#0 /var/www/html/frontenndposystem/po-system-new/back-end/vendor/phpoffice/phpexcel/Examples/15datavalidation.php(141): PHPExcel_Writer_Excel2007-&gt;save('/var/www/html/f...')
#1 {main}
  thrown in <b>/var/www/html/frontenndposystem/po-system-new/back-end/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>389</b><br />