11:15:18 Create new PHPExcel object
11:15:18 Set document properties
11:15:18 Add some data
11:15:18 Add comments
11:15:18 Add rich-text string
11:15:18 Merge cells
11:15:18 Protect cells
11:15:18 Set cell number formats
11:15:18 Set column widths
11:15:18 Set fonts
11:15:18 Set alignments
11:15:18 Set thin black border outline around column
11:15:18 Set thick brown border outline around Total
11:15:18 Set fills
11:15:18 Set style for header row using alternative method
11:15:18 Unprotect a cell
11:15:18 Add a hyperlink to an external website
11:15:18 Add a hyperlink to another cell on a different worksheet within the workbook
11:15:18 Add a drawing to the worksheet
11:15:18 Add a drawing to the worksheet
11:15:18 Add a drawing to the worksheet
11:15:18 Play around with inserting and removing rows and columns
11:15:18 Set header/footer
11:15:18 Set page orientation and size
11:15:18 Rename first worksheet
11:15:18 Create a second Worksheet object
11:15:18 Add some data
11:15:18 Set the worksheet tab color
11:15:18 Set alignments
11:15:18 Set column widths
11:15:18 Set fonts
11:15:18 Add a drawing to the worksheet
11:15:18 Set page orientation and size
11:15:18 Rename second worksheet
11:15:18 Write to Excel5 format
Fatal error: Uncaught Error: Call to undefined function imagepng() in /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:484
Stack trace:
#0 /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(148): PHPExcel_Writer_Excel5->_buildWorkbookEscher()
#1 /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Examples/14excel5.php(48): PHPExcel_Writer_Excel5->save('/var/www/html/T...')
#2 {main}
thrown in /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 484