PHP BASIC (Database class)

    <?
    class MySql {
    public function query($sql){
    $query = @mysql_query($sql, $this->handle) or die(mysql_errno().": ".mysql_error());
    return new Result($query);
    }

    public function connect($host, $root, $pass, $data){
    $connect = @mysql_connect($host, $root, $pass) or die(mysql_errno().": ".mysql_error());
    @mysql_select_db($data, $connect) or die(mysql_errno().": ".mysql_error());
    $this->handle = $connect;
    return $connect;
    }

    public function put($str){
    return new Text($str);
    }

    public function last(){
    return @mysql_insert_id($this->handle);
    }

    public function close(){
    return @mysql_close($this->handle);
    }
    }

    class Result extends MySql{
    public function Result($result){
    $this->query = $result;
    }

    public function fetch(){
    return @mysql_fetch_array($this->query);
    }

    public function is(){
    return ($this->query?true:false);
    }

    public function cell($num=0){
    $row = @mysql_fetch_row($this->query);
    return $row[$num];
    }

    public function num(){
    return @mysql_num_rows($this->query);
    }

    public function finish(){
    return $this->query;
    }
    }

    class Text extends MySql{
    public function Text($text){
    $this->text = $text;
    }

    public function hash(){
    return sha1($this->text);
    }

    public function protect(){
    if(get_magic_quotes_runtime()){
    $this->text = htmlspecialchars(stripslashes($this->text));
    }

    return @mysql_real_escape_string($this->text);
    }
    }
    ?>