21:39:45 Create new PHPExcel object<br />21:39:45 Set document properties<br />21:39:45 Add some data<br />21:39:45 Add comments<br />21:39:45 Add rich-text string<br />21:39:45 Merge cells<br />21:39:45 Protect cells<br />21:39:45 Set cell number formats<br />21:39:45 Set column widths<br />21:39:45 Set fonts<br />21:39:45 Set alignments<br />21:39:45 Set thin black border outline around column<br />21:39:45 Set thick brown border outline around Total<br />21:39:45 Set fills<br />21:39:45 Set style for header row using alternative method<br />21:39:45 Unprotect a cell<br />21:39:45 Add a hyperlink to an external website<br />21:39:45 Add a hyperlink to another cell on a different worksheet within the workbook<br />21:39:45 Add a drawing to the worksheet<br />21:39:45 Add a drawing to the worksheet<br />21:39:45 Add a drawing to the worksheet<br />21:39:45 Play around with inserting and removing rows and columns<br />21:39:45 Set header/footer<br />21:39:45 Set page orientation and size<br />21:39:45 Rename first worksheet<br />21:39:45 Create a second Worksheet object<br />21:39:45 Add some data<br />21:39:45 Set the worksheet tab color<br />21:39:45 Set alignments<br />21:39:45 Set column widths<br />21:39:45 Set fonts<br />21:39:45 Add a drawing to the worksheet<br />21:39:45 Set page orientation and size<br />21:39:45 Rename second worksheet<br />21:39:45 Write to Excel5 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function imagepng() in /var/www/html/IDEE/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:484
Stack trace:
#0 /var/www/html/IDEE/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(148): PHPExcel_Writer_Excel5-&gt;_buildWorkbookEscher()
#1 /var/www/html/IDEE/vendor/phpoffice/phpexcel/Examples/14excel5.php(48): PHPExcel_Writer_Excel5-&gt;save('/var/www/html/I...')
#2 {main}
  thrown in <b>/var/www/html/IDEE/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php</b> on line <b>484</b><br />