PHP 7

Hi,
maybe for the next update:
plugins/visitor-maps/include-whos-online-geoip.php

-----------------------------------------------------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
-----------------------------------------------------------------------------------------------------------------------------
 525 | ERROR | 'string' is a reserved keyword introduced in PHP version 7.0 and cannot be invoked as a function (T_STRING)
-----------------------------------------------------------------------------------------------------------------------------

Best regards,
Harry