22:29:39 Create new PHPExcel object
22:29:39 Set document properties
22:29:39 Add some data
22:29:39 Add comments
22:29:39 Add rich-text string
22:29:39 Merge cells
22:29:39 Protect cells
22:29:39 Set cell number formats
22:29:39 Set column widths
22:29:39 Set fonts
22:29:39 Set alignments
22:29:39 Set thin black border outline around column
22:29:39 Set thick brown border outline around Total
22:29:39 Set fills
22:29:39 Set style for header row using alternative method
22:29:39 Unprotect a cell
22:29:39 Add a hyperlink to an external website
22:29:39 Add a hyperlink to another cell on a different worksheet within the workbook
22:29:39 Add a drawing to the worksheet
22:29:39 Add a drawing to the worksheet
22:29:39 Add a drawing to the worksheet
22:29:39 Play around with inserting and removing rows and columns
22:29:39 Set header/footer
22:29:39 Set page orientation and size
22:29:39 Rename first worksheet
22:29:39 Create a second Worksheet object
22:29:39 Add some data
22:29:39 Set the worksheet tab color
22:29:39 Set alignments
22:29:39 Set column widths
22:29:39 Set fonts
22:29:39 Add a drawing to the worksheet
22:29:39 Set page orientation and size
22:29:39 Rename second worksheet
22:29:39 Write to Excel5 format
Fatal error: Uncaught Error: Call to undefined function imagepng() in /var/www/cronologias/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:484
Stack trace:
#0 /var/www/cronologias/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(148): PHPExcel_Writer_Excel5->_buildWorkbookEscher()
#1 /var/www/cronologias/html/vendor/phpoffice/phpexcel/Examples/14excel5.php(48): PHPExcel_Writer_Excel5->save('/var/www/cronol...')
#2 {main}
thrown in /var/www/cronologias/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 484