15:11:33 Create new PHPExcel object
15:11:33 Set document properties
15:11:33 Add some data
Notice: Trying to access array offset on value of type float in /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php on line 82
15:11:33 Add comments
15:11:33 Add rich-text string
15:11:33 Merge cells
15:11:33 Protect cells
15:11:33 Set cell number formats
15:11:33 Set column widths
15:11:33 Set fonts
15:11:33 Set alignments
15:11:33 Set thin black border outline around column
15:11:33 Set thick brown border outline around Total
15:11:33 Set fills
15:11:33 Set style for header row using alternative method
15:11:33 Unprotect a cell
15:11:33 Add a hyperlink to an external website
15:11:33 Add a hyperlink to another cell on a different worksheet within the workbook
15:11:33 Add a drawing to the worksheet
15:11:33 Add a drawing to the worksheet
15:11:33 Add a drawing to the worksheet
15:11:33 Play around with inserting and removing rows and columns
15:11:33 Set header/footer
15:11:33 Set page orientation and size
15:11:33 Rename first worksheet
15:11:33 Create a second Worksheet object
15:11:33 Add some data
15:11:33 Set the worksheet tab color
15:11:33 Set alignments
15:11:33 Set column widths
15:11:33 Set fonts
15:11:33 Add a drawing to the worksheet
15:11:33 Set page orientation and size
15:11:33 Rename second worksheet
15:11:33 Write to CSV format
Fatal error: Uncaught Error: Call to undefined function mb_strtolower() in /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php:448
Stack trace:
#0 [internal function]: PHPExcel_Style_NumberFormat::setLowercaseCallback()
#1 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(464): preg_replace_callback()
#2 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(647): PHPExcel_Style_NumberFormat::formatAsDate()
#3 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet.php(2502): PHPExcel_Style_NumberFormat::toFormattedString()
#4 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/CSV.php(142): PHPExcel_Worksheet->rangeToArray()
#5 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Examples in /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php on line 448