public $query;
public $fetchAll;
public $result;
public $response;
protected $config;
protected $driver;
protected $host;
protected $port;
protected $user;
protected $pass;
protected $dbname;
protected $con;

public function __construct( $config )
{
    try
    {
        #array com dados do banco
        $this->config = $config;
        # Recupera os dados de conexao do config
        $this->dbname = $this->config['dbname'];
        $this->driver = $this->config['driver'];
        $this->host = $this->config['host'];
        $this->port = $this->config['port'];
        $this->user = $this->config['user'];
        $this->pass = $this->config['password'];
        # instancia e retorna objeto
        $this->con = mysql_connect( "$this->host", "$this->user", "$this->pass" );
        @mysql_select_db( "$this->dbname" );
        if( !$this->con )
        {
            throw new Exception( "Falha na conexão MySql com o banco [$this->dbname] em " . DATABASEDIR . "database.conf.php" );
        }
        else
        {
            return $this->con;
        }
    }
    catch( Exception $e )
    {
        echo $e->getMessage();
        exit;
    }
    return $this;
}

public function query( $query = '' )
{
    try
    {
        if( $query == '' )
        {
            throw new Exception( 'mysql query: A query deve ser informada como parâmetro do método.' );
        }
        else
        {
            $this->query = $query;
            $this->result = mysql_query( $this->query );
            if(!$this->result)
            {
                $this->response = "Erro " .mysql_errno()." => ". mysql_error();
            }
            else
            {
                $this->response = "success";
            }
        }
    }
    catch( Exception $e )
    {
        echo $e->getMessage();
        exit;
    }
    return $this;
}

public function fetchAll()
{
    $this->fetchAll = "";
    while( $row = @mysql_fetch_array( $this->result, MYSQL_ASSOC ) )
    {
        $this->fetchAll[] = $row;
    }
    return $this->fetchAll;
}

public function rowCount()
{
    return @mysql_affected_rows();
}

public function limit( $limit, $offset )
{
    return "LIMIT " . (int) $limit . "," . (int) $offset;
}