09:03:15 Create new PHPExcel object<br />09:03:15 Set document properties<br />09:03:15 Add data<br />09:03:15 Set styling<br />09:03:15 Set autofilter range<br />09:03:15 Set active filters<br />09:03:15 Execute filtering<br />09:03:15 Display filtered rows<br />    Row number - 1 Country Date <br />    Row number - 3197 United States <br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function mb_strtolower() in /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php:448
Stack trace:
#0 [internal function]: PHPExcel_Style_NumberFormat::setLowercaseCallback(Array)
#1 /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(464): preg_replace_callback('/(?:^|&quot;)([^&quot;]*)...', Array, 'yyyy-mm-dd')
#2 /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(647): PHPExcel_Style_NumberFormat::formatAsDate(46081, 'yyyy-mm-dd')
#3 /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell.php(191): PHPExcel_Style_NumberFormat::toFormattedString(46081, 'yyyy-mm-dd')
#4 /var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Examples/10autofilter-selection-display.php(195): PHPExcel_Cell-&gt;getFormattedValue()
#5 {main}
  thrown in <b>/var/www/tsf-audio-bitrate/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php</b> on line <b>448</b><br />