16:04:00 Create new PHPExcel object
16:04:00 Set document properties
16:04:00 Add some data
16:04:00 Add comments
16:04:00 Add rich-text string
16:04:00 Merge cells
16:04:00 Protect cells
16:04:00 Set cell number formats
16:04:00 Set column widths
16:04:00 Set fonts
16:04:00 Set alignments
16:04:00 Set thin black border outline around column
16:04:00 Set thick brown border outline around Total
16:04:00 Set fills
16:04:00 Set style for header row using alternative method
16:04:00 Unprotect a cell
16:04:00 Add a hyperlink to an external website
16:04:00 Add a hyperlink to another cell on a different worksheet within the workbook
16:04:00 Add a drawing to the worksheet
16:04:00 Add a drawing to the worksheet
16:04:00 Add a drawing to the worksheet
16:04:00 Play around with inserting and removing rows and columns
16:04:00 Set header/footer
16:04:00 Set page orientation and size
16:04:00 Rename first worksheet
16:04:00 Create a second Worksheet object
16:04:00 Add some data
16:04:00 Set the worksheet tab color
16:04:00 Set alignments
16:04:00 Set column widths
16:04:00 Set fonts
16:04:00 Add a drawing to the worksheet
16:04:00 Set page orientation and size
16:04:00 Rename second worksheet
16:04:00 Write to Excel2007 format
16:04:00 File written to 05featuredemo.xlsx
Call time to write Workbook was 0.0189 seconds
16:04:00 Current memory usage: 6 MB
16:04:00 Write to Excel5 format
Fatal error: Uncaught Error: Call to undefined function imagepng() in /var/www/html/SFL/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:484
Stack trace:
#0 /var/www/html/SFL/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(148): PHPExcel_Writer_Excel5->_buildWorkbookEscher()
#1 /var/www/html/SFL/vendor/phpoffice/phpexcel/Examples/05featuredemo.php(63): PHPExcel_Writer_Excel5->save('/var/www/html/S...')
#2 {main}
thrown in /var/www/html/SFL/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 484