22:41:26 Create new PHPExcel object
22:41:26 Set document properties
22:41:26 Add some data
22:41:26 Add comments
22:41:26 Add rich-text string
22:41:26 Merge cells
22:41:26 Protect cells
22:41:26 Set cell number formats
22:41:26 Set column widths
22:41:26 Set fonts
22:41:26 Set alignments
22:41:26 Set thin black border outline around column
22:41:26 Set thick brown border outline around Total
22:41:26 Set fills
22:41:26 Set style for header row using alternative method
22:41:26 Unprotect a cell
22:41:26 Add a hyperlink to an external website
22:41:26 Add a hyperlink to another cell on a different worksheet within the workbook
22:41:26 Add a drawing to the worksheet
22:41:26 Add a drawing to the worksheet
22:41:26 Add a drawing to the worksheet
22:41:26 Play around with inserting and removing rows and columns
22:41:26 Set header/footer
22:41:26 Set page orientation and size
22:41:26 Rename first worksheet
22:41:26 Create a second Worksheet object
22:41:26 Add some data
22:41:26 Set the worksheet tab color
22:41:26 Set alignments
22:41:26 Set column widths
22:41:26 Set fonts
22:41:26 Add a drawing to the worksheet
22:41:26 Set page orientation and size
22:41:26 Rename second worksheet
22:41:26 Write to Excel5 format
Fatal error: Uncaught Error: Call to undefined function imagepng() in /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:470
Stack trace:
#0 /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(136): PHPExcel_Writer_Excel5->buildWorkbookEscher()
#1 /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Examples/14excel5.php(48): PHPExcel_Writer_Excel5->save('/var/www/tsf-au...')
#2 {main}
thrown in /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 470