The form is not exporting in excel (CFDB)

same issue here, I really need this to work again

I can export correctly. But has no contents. I think different settings are made between wordpress core and this plugin about use_mysqli.

*Wordpress core
wp-db.php (__constructor())

*Plug in
CFDBQueryResultIterator.php (shouldUseMySqli())
CFDBWpdbUnbufferedResultIterator.php (shouldUseMySqli())

So I have replace shouldUseMySqli() to below in CFDBQueryResultIterator.php and CFDBWpdbUnbufferedResultIterator.php.

public function shouldUseMySqli() {
$use_mysqli = false;
// Use ext/mysqli if it exists unless WP_USE_EXT_MYSQL is defined as true
if ( function_exists( ‘mysqli_connect’ ) ) {
$use_mysqli = true;
if ( defined( ‘WP_USE_EXT_MYSQL’ ) ) {
$use_mysqli = ! WP_USE_EXT_MYSQL;
}
}
return $use_mysqli;
}

*My environment
wordpress 4.9.2
contact-form-7-to-database-extension-2.10.34

It looks like it is working. Thanks.