19:51:36 Create new PHPExcel object<br />19:51:36 Set document properties<br />19:51:36 Add data<br />19:51:36 Set data validation<br />19:51:36 Write to Excel2007 format<br />19:51:36 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0106 seconds<br />19:51:36 Current memory usage: 6 MB<br />19:51:36 Peak memory usage: 6 MB<br />19:51:36 Done writing file<br />File has been created in /var/www/customs_yiao/vendor/phpoffice/phpexcel/Examples<br />