19:51:32 Create new PHPExcel object<br />19:51:32 Set document properties<br />19:51:32 Add data<br />19:51:32 Set data validation<br />19:51:32 Write to Excel5 format<br />19:51:32 File written to 15datavalidation-xls.xls<br />Call time to write Workbook was 0.0151 seconds<br />19:51:32 Current memory usage: 6 MB<br />19:51:32 Peak memory usage: 6 MB<br />19:51:32 Done writing file<br />File has been created in /var/www/customs_yiao/vendor/phpoffice/phpexcel/Examples<br />