12:09:16 Create new PHPExcel object<br />12:09:16 Set document properties<br />12:09:16 Add some data<br />12:09:16 Add comments<br />12:09:16 Add rich-text string<br />12:09:16 Merge cells<br />12:09:16 Protect cells<br />12:09:16 Set cell number formats<br />12:09:16 Set column widths<br />12:09:16 Set fonts<br />12:09:16 Set alignments<br />12:09:16 Set thin black border outline around column<br />12:09:16 Set thick brown border outline around Total<br />12:09:16 Set fills<br />12:09:16 Set style for header row using alternative method<br />12:09:16 Unprotect a cell<br />12:09:16 Add a hyperlink to an external website<br />12:09:16 Add a hyperlink to another cell on a different worksheet within the workbook<br />12:09:16 Add a drawing to the worksheet<br />12:09:16 Add a drawing to the worksheet<br />12:09:16 Add a drawing to the worksheet<br />12:09:16 Play around with inserting and removing rows and columns<br />12:09:16 Set header/footer<br />12:09:16 Set page orientation and size<br />12:09:16 Rename first worksheet<br />12:09:16 Create a second Worksheet object<br />12:09:16 Add some data<br />12:09:16 Set the worksheet tab color<br />12:09:16 Set alignments<br />12:09:16 Set column widths<br />12:09:16 Set fonts<br />12:09:16 Add a drawing to the worksheet<br />12:09:16 Set page orientation and size<br />12:09:16 Rename second worksheet<br />12:09:16 Write to Excel5 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function imagepng() in /var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:470
Stack trace:
#0 /var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(136): PHPExcel_Writer_Excel5-&gt;buildWorkbookEscher()
#1 /var/www/html/vendor/phpoffice/phpexcel/Examples/14excel5.php(48): PHPExcel_Writer_Excel5-&gt;save('/var/www/html/v...')
#2 {main}
  thrown in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php</b> on line <b>470</b><br />