SAMP example 2

// Inside admin system (the functions are bellow):
static load_id;
hook OnGameModeInit()
{
    load_id = AddLoginData("SELECT admin FROM admins WHERE id=%i", "i");
    return 1;
}
hook OnPlayerLoad()
{
    cache_set_result(load_id);

    cache_get_value_name_int(0, "admin", AdminLevel[playerid]);
    if(AdminLevel[playerid] > 0)
        Iter_Add(admins, playerid);
    return 1;
}

//Functions used:
static queries;
static formatted_QUERY[4096];
static Functions[500];
AddLoginData(q[], func[])
{
    strcat(formatted_QUERY, q);
    strcat(Functions, func);
    return queries++;
}

hook OnUserFound(playerid)
{
    new values[500];
    for(new i = 0; Functions[i]; i++)
    {
        switch(Function[i])
        {
            case 'i': values[i] = GetPlayerId(playerid);
            case 't': values[i] = gettime();
            default: printf("forgot to add some functions? (%c)", Function[i]);
        }
    }

    new q[4096];
    format(q, sizeof(q), formatted_QUERY, /* ?? */ ) // Pass values here

    mysql_pquery(db, q, "_load_User_data", "ii", playerid, PlayerChecker[playerid]);
    return 1;
}
forward _load_User_data(playerid, checker);
public _load_User_data(playerid, checker)
{
    // check for race condition here

    CallLocalFunction("OnPlayerLoad", "i", playerid);
    return 1;
}