[Sanady]

Hello.I used mysql_format and It`s says undefined symbol.I am using MySQL plugin R6.Why this is showing to me!?

pawn Код:

stock GetFreeHouseSlot()
{
    new szQuery[32];
    for(new id = 0; id < MAX_HOUSES; id++)
    {
        mysql_format(1,szQuery, "SELECT * FROM `samp_houses` WHERE `HouseID` = %d", id);
        mysql_query(szQuery);
        if(!mysql_num_rows()) return id;
    }
    return -1;
}

Please help me...