Error with quota during "Fetching data" phase

[gmammolo]

• nextcloud version: 25.0.6
• nextcloud-userexport: 1.2.1

Error:

PHP Fatal error:  Uncaught TypeError: Unsupported operand types: int + string in /var/www/nextcloud-userexport/functions.php:695
Stack trace:
  #0 /var/www/nextcloud-userexport/index.php(104): calculate_quota()
  #1 {main}\n  thrown in /var/www/nextcloud-userexport/functions.php on line 695

Analysis and possible solution:

In some cases the value of $user_data['ocs']['data']['quota'] (functions.php:695) return 'none' and is interpreted as a string.
I'm not really sure why this happens, but when I've checked all $user_data['ocs']['data']['quota'] values, I see a few elements have less values (like only Array ( [quota] => none, [used] => 0 )).

To avoid fatal error, simply add intval parse:

functions.php:695

$quota_assigned = intval($user_data['ocs']['data']['quota']['quota']);