mysql操作类(9)

    $this->query("select * from $table_name"); 
    echo "<br>"; 
    echo "字段数：".$total=mysql_num_fields($this->result); 
    for ($i=0;$i<$total;$i++){ 
        print_r(mysql_fetch_field($this->result,$i)); 
    } 
    echo "</pre>"; 
    echo "<br>"; 
   } 
   //取得mysql 服务器信息  
   public  function mysql_server($num=''){ 
    switch ($num){ 
          case 1: 
            return mysql_get_server_info(); 
            break; 
            case 2: 
            return mysql_get_host_info(); 
            break; 
            case 3: 
            return mysql_get_client_info(); 
            break; 
            case 4: 
            return mysql_get_proto_info(); 
            break; 
            default: 
                return mysql_get_client_info(); 
    } 
   } 
  public  function __destruct(){ 
    if(!emptyempty($this->result)){ 
        $this->free(); 
    } 
    mysql_close($this->conn); 
  } 
  //获得客户端真实的ID地址  
   function getip() { 
        if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) { 
            $ip = getenv("HTTP_CLIENT_IP"); 
        } else 
            if (getenv("HTTP_X_FORWARDED_FOR") &&strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) {