PHP7 - PHPexcel export issue

[ghost]

Notice: Undefined variable: zipClass in /var/www/vhost/timesheet.grazitti.com/html/PHPExcel/Writer/Excel2007.php on line 227
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Fatal error: Uncaught Error: Class name must be a valid object or a string in /var/www/vhost/timesheet.grazitti.com/html/PHPExcel/Writer/Excel2007.php:227 Stack trace: #0 /var/www/vhost/timesheet.grazitti.com/html/admin_report_specific_user.php(764): PHPExcel_Writer_Excel2007->save('/tmp/phpxltmpF0...') #1 {main} thrown in /var/www/vhost/timesheet.grazitti.com/html/PHPExcel/Writer/Excel2007.php on line 227

I am getting this issue. Please let me know solution and i am using 1.8.1 version.

[PowerKiKi]

You are not using the official PHPExcel 1.8.1, because the variable $zipClass cannot be undefined at that line. See the code for yourself there.

Upgrade to PHPExcel 1.8.1.

[ghost]

Now i have used same Upgrade to PHPExcel 1.8.1. code which u have send me link. I am getting following error.

Fatal error: Uncaught Error: Class 'ZipArchive' not found in /var/www/vhost/timesheet.grazitti.com/html/PHPExcel/Writer/Excel2007.php:227 Stack trace: #0 /var/www/vhost/timesheet.grazitti.com/html/admin_report_specific_user.php(765): PHPExcel_Writer_Excel2007->save('/tmp/phpxltmpr3...') #1 {main} thrown in /var/www/vhost/timesheet.grazitti.com/html/PHPExcel/Writer/Excel2007.php on line 227

[PowerKiKi]

https://github.com/PHPOffice/PHPExcel/blob/master/Documentation/markdown/Overview/01-Getting-Started.md#php-complains-about-ziparchive-not-being-found