22:31:01 Create new PHPExcel object
22:31:01 Set document properties
22:31:01 Add some data
22:31:01 Add comments
22:31:01 Add rich-text string
22:31:01 Merge cells
22:31:01 Protect cells
22:31:01 Set cell number formats
22:31:01 Set column widths
22:31:01 Set fonts
22:31:01 Set alignments
22:31:01 Set thin black border outline around column
22:31:01 Set thick brown border outline around Total
22:31:01 Set fills
22:31:01 Set style for header row using alternative method
22:31:01 Unprotect a cell
22:31:01 Add a hyperlink to an external website
22:31:01 Add a hyperlink to another cell on a different worksheet within the workbook
22:31:01 Add a drawing to the worksheet
22:31:01 Add a drawing to the worksheet
22:31:01 Add a drawing to the worksheet
22:31:01 Play around with inserting and removing rows and columns
22:31:01 Set header/footer
22:31:01 Set page orientation and size
22:31:01 Rename first worksheet
22:31:01 Create a second Worksheet object
22:31:01 Add some data
22:31:01 Set the worksheet tab color
22:31:01 Set alignments
22:31:01 Set column widths
22:31:01 Set fonts
22:31:01 Add a drawing to the worksheet
22:31:01 Set page orientation and size
22:31:01 Rename second worksheet
22:31:01 Write to HTML format
Fatal error: Uncaught Error: Call to undefined function mb_strtolower() in /var/www/html/psyserve.psyventures.com/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php:448
Stack trace:
#0 [internal function]: PHPExcel_Style_NumberFormat::setLowercaseCallback(Array)
#1 /var/www/html/psyserve.psyventures.com/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(464): preg_replace_callback('/(?:^|")([^"]*)...', Array, 'd-mmm-yy')
#2 /var/www/html/psyserve.psyventures.com/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(647): PHPExcel_Style_NumberFormat::formatAsDate(45844, 'd-mmm-yy')
#3 /var/www/html/psyserve.psyventures.com/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php(1245): PHPExcel_Style_NumberFormat::toFormattedString(45844, 'd-mmm-yy', Array)
#4 /var/www/html/psyserve.psyventures.com/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php(476): PHPExcel_Writer_HTML->generateRow(Object(PHPExcel_Worksheet), Array, 0, 'td')
#5 /var/www/html/psyserve.psyventures.com in /var/www/html/psyserve.psyventures.com/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php on line 448