18:22:59 Create new PHPExcel object
18:22:59 Set document properties
18:22:59 Add some data
18:22:59 Add comments
18:22:59 Add rich-text string
18:22:59 Merge cells
18:22:59 Protect cells
18:22:59 Set cell number formats
18:22:59 Set column widths
18:22:59 Set fonts
18:22:59 Set alignments
18:22:59 Set thin black border outline around column
18:22:59 Set thick brown border outline around Total
18:22:59 Set fills
18:22:59 Set style for header row using alternative method
18:22:59 Unprotect a cell
18:22:59 Add a hyperlink to an external website
18:22:59 Add a hyperlink to another cell on a different worksheet within the workbook
18:22:59 Add a drawing to the worksheet
18:22:59 Add a drawing to the worksheet
18:22:59 Add a drawing to the worksheet
18:22:59 Play around with inserting and removing rows and columns
18:22:59 Set header/footer
18:22:59 Set page orientation and size
18:22:59 Rename first worksheet
18:22:59 Create a second Worksheet object
18:22:59 Add some data
18:22:59 Set the worksheet tab color
18:22:59 Set alignments
18:22:59 Set column widths
18:22:59 Set fonts
18:22:59 Add a drawing to the worksheet
18:22:59 Set page orientation and size
18:22:59 Rename second worksheet
18:22:59 Write to Excel2007 format
18:22:59 File written to 41password.xlsx
Call time to write Workbook was 0.0140 seconds
18:22:59 Current memory usage: 4 MB
18:22:59 Write to Excel5 format

Fatal error: Uncaught Error: Call to undefined function imagepng() in /var/www/erp/PHPExcel-1.8.porsi/Classes/PHPExcel/Writer/Excel5.php:470 Stack trace: #0 /var/www/erp/PHPExcel-1.8.porsi/Classes/PHPExcel/Writer/Excel5.php(136): PHPExcel_Writer_Excel5->buildWorkbookEscher() #1 /var/www/erp/PHPExcel-1.8.porsi/Examples/41password.php(69): PHPExcel_Writer_Excel5->save('/var/www/erp/PH...') #2 {main} thrown in /var/www/erp/PHPExcel-1.8.porsi/Classes/PHPExcel/Writer/Excel5.php on line 470