23:47:34 Create new PHPExcel object<br />23:47:34 Set document properties<br />23:47:34 Add some data<br /><br />
<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
23:47:34 Sum of Range #1 is 23<br /><br />
<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
<br />
<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
<br />
<b>Notice</b>:  Trying to access array offset on value of type int in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php</b> on line <b>82</b><br />
23:47:34 Sum of Range #2 is 33<br />23:47:34 Sum of both Ranges is 56<br />23:47:34 Minimum value in either Range is 3<br />23:47:34 Maximum value in either Range is 17<br />23:47:34 Average value of both Ranges is 9.3333333333333<br />23:47:34 Rename worksheet<br />23:47:34 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /var/www/html/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007-&gt;save()
#1 {main}
  thrown in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>220</b><br />