11:42:35 Create new PHPExcel object
11:42:35 Set document properties
11:42:35 Add some data
11:42:35 Add comments
11:42:35 Add rich-text string
11:42:35 Merge cells
11:42:35 Protect cells
11:42:35 Set cell number formats
11:42:35 Set column widths
11:42:35 Set fonts
11:42:35 Set alignments
11:42:35 Set thin black border outline around column
11:42:35 Set thick brown border outline around Total
11:42:35 Set fills
11:42:35 Set style for header row using alternative method
11:42:35 Unprotect a cell
11:42:35 Add a hyperlink to an external website
11:42:35 Add a hyperlink to another cell on a different worksheet within the workbook
11:42:35 Add a drawing to the worksheet
11:42:35 Add a drawing to the worksheet
11:42:35 Add a drawing to the worksheet
11:42:35 Play around with inserting and removing rows and columns
11:42:35 Set header/footer
11:42:35 Set page orientation and size
11:42:35 Rename first worksheet
11:42:35 Create a second Worksheet object
11:42:35 Add some data
11:42:35 Set the worksheet tab color
11:42:35 Set alignments
11:42:35 Set column widths
11:42:35 Set fonts
11:42:35 Add a drawing to the worksheet
11:42:35 Set page orientation and size
11:42:35 Rename second worksheet
11:42:35 Write to Excel2007 format
11:42:36 File written to 05featuredemo.xlsx
Call time to write Workbook was 0.0131 seconds
11:42:36 Current memory usage: 2 MB
11:42:36 Write to Excel5 format
Fatal error: Uncaught Error: Call to undefined function imagepng() in /var/www/erp/PHPExcel-1.8-/Classes/PHPExcel/Writer/Excel5.php:470
Stack trace:
#0 /var/www/erp/PHPExcel-1.8-/Classes/PHPExcel/Writer/Excel5.php(136): PHPExcel_Writer_Excel5->buildWorkbookEscher()
#1 /var/www/erp/PHPExcel-1.8-/Examples/05featuredemo.php(63): PHPExcel_Writer_Excel5->save('/var/www/erp/PH...')
#2 {main}
thrown in /var/www/erp/PHPExcel-1.8-/Classes/PHPExcel/Writer/Excel5.php on line 470