[Vince]

What I would advise you to do is to pass the connection handle to the callback via mysql_tquery. This way you don't really have to bother with globals. e.g.:

PHP код:

mysql_tquery(forumdb, query, "MyCallback", "dd", playerid, forumdb);

// ...

public MyCallback(playerid, connectionHandle)
{
    new rows = cache_get_row_count(connectionHandle);
    // ...
}