13:38:49 Create new PHPExcel object
13:38:49 Set document properties
13:38:49 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
13:38:49 Add comments
13:38:49 Add rich-text string
13:38:49 Merge cells
13:38:49 Protect cells
13:38:49 Set cell number formats
13:38:49 Set column widths
13:38:49 Set fonts
13:38:49 Set alignments
13:38:49 Set thin black border outline around column
13:38:49 Set thick brown border outline around Total
13:38:49 Set fills
13:38:49 Set style for header row using alternative method
13:38:49 Unprotect a cell
13:38:49 Add a hyperlink to an external website
13:38:49 Add a hyperlink to another cell on a different worksheet within the workbook
13:38:49 Add a drawing to the worksheet
13:38:49 Add a drawing to the worksheet
13:38:49 Add a drawing to the worksheet
13:38:49 Play around with inserting and removing rows and columns
13:38:49 Set header/footer
13:38:49 Set page orientation and size
13:38:49 Rename first worksheet
13:38:49 Create a second Worksheet object
13:38:49 Add some data
13:38:49 Set the worksheet tab color
13:38:49 Set alignments
13:38:49 Set column widths
13:38:49 Set fonts
13:38:49 Add a drawing to the worksheet
13:38:49 Set page orientation and size
13:38:49 Rename second worksheet
13:38:49 Write to HTML 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/Writer/HTML.php(1245): PHPExcel_Style_NumberFormat::toFormattedString()
#4 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php(476): PHPExcel_Writer_HTML->generateRow()
#5 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Clas in /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php on line 448