11:30:20 Create new PHPExcel object
11:30:20 Set document properties
11:30:20 Add some data
11:30:20 Add comments
11:30:20 Add rich-text string
11:30:20 Merge cells
11:30:20 Protect cells
11:30:20 Set cell number formats
11:30:20 Set column widths
11:30:20 Set fonts
11:30:20 Set alignments
11:30:20 Set thin black border outline around column
11:30:20 Set thick brown border outline around Total
11:30:20 Set fills
11:30:20 Set style for header row using alternative method
11:30:20 Unprotect a cell
11:30:20 Add a hyperlink to an external website
11:30:20 Add a hyperlink to another cell on a different worksheet within the workbook
11:30:20 Add a drawing to the worksheet
11:30:20 Add a drawing to the worksheet
11:30:20 Add a drawing to the worksheet
11:30:20 Play around with inserting and removing rows and columns
11:30:20 Set header/footer
11:30:20 Set page orientation and size
11:30:20 Rename first worksheet
11:30:20 Create a second Worksheet object
11:30:20 Add some data
11:30:20 Set the worksheet tab color
11:30:20 Set alignments
11:30:20 Set column widths
11:30:20 Set fonts
11:30:20 Add a drawing to the worksheet
11:30:20 Set page orientation and size
11:30:20 Rename second worksheet
11:30:20 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/14excel5.php(48): 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