php 类

 <?php
     class mysql{

      private $host;
      private $name;
      private $pass;
      private $table;
      private $ut;

      function __construct($host,$name,$pass,$table,$ut){
          $this->host=$host;
          $this->name=$name;
          $this->pass=$pass;
          $this->table=$table;
          $this->ut=$ut;
          $this->connect();

      }

      function connect(){
       $link=mysql_connect($this->host,$this->name,$this->pass) or die ($this->error());
       mysql_select_db($this->table,$link) or die("没该数据库：".$this->table);
       mysql_query("SET NAMES '$this->ut'");
      }

 //-------------------------系统方法区------------------------------------

     function query($sql, $type = '') {
         if(!($query = mysql_query($sql))) $this->show('Say:', $sql);
         return $query;
     }

     function show($message = '', $sql = '') {
         if(!$sql) echo $message;
         else echo $message.'<br>'.$sql;
     }

     function affected_rows() {
         return mysql_affected_rows();
     }

     function result($query, $row) {
         return mysql_result($query, $row);
     }

     function num_rows($query) {
         return @mysql_num_rows($query);
     }

     function num_fields($query) {
         return mysql_num_fields($query);
     }

     function free_result($query) {
         return mysql_free_result($query);
     }

     function insert_id() {
         return mysql_insert_id();
     }

     function fetch_row($query) {
         return mysql_fetch_row($query);
     }

     function version() {
         return mysql_get_server_info();
     }

     function close() {
         return mysql_close();
     }

 //---------------------功能方法区--------------------------------

     function fn_insert($table,$name,$value){

         $this->query("insert into $table ($name) value ($value)");

     }
     function fn_select($table){

         $this->query("select * from $table");

     }

    }

   $db =  new mysql('localhost','root','','db_tmlog',"utf-8");//数据库连接

 ?>