[Konstantinos]

You can reverse the iterator and it's always good to check if the string is not null before comparing it with another string.

PHP код:

CheckServerIp(string[])
{
    foreach(new i : Reverse(VirtualServer))
    {
        if (!isnull(VirtualServerInfo[i][sIP]) && !strcmp(VirtualServerInfo[i][sIP], string)) return i;
    }
    return -1;
}