php连接数据库用的一些方法

<?php
class ConnectionMySQL{
    //主机
    private $host="localhost";
    //数据库的username
    private $name="root";
    //数据库的password
    private $pass="11111111";
    //数据库名称
    private $table="table";
    //编码形式
    private $ut="utf8";


    //构造函数
    function __construct(){
        $this->ut=$ut;
        $this->connect();

    }

    //数据库的链接
    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 'utf8'");
		mysql_query("set character_set_client=utf8");
		mysql_query("set character_set_results=utf8");
           //中文乱码问题
    }

    function query($sql, $type = '') {
        if(!($query = mysql_query($sql))) $query=null;
        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 table_rows($table){
		$query=mysql_query("select * from $table") or die(mysql_error());
		return mysql_num_rows($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();
    }

    //向$table表中插入值
    function fn_insert($table,$name,$value){
        $this->query("insert into $table ($name) values ($value)");
    }
    //根据$id值删除表$table中的一条记录
    function fn_delete($table,$id,$value){
        $this->query("delete from $table where $id=$value");
        echo "id为". $id." 的记录被成功删除!";
    }
    //根据$id值查询表中的记录
    function fn_select($table,$id){
        $fileinfo=$this->query("select * from $table where id=$id");
        return $fileinfo;
    }
	
}


?>