<?php
class Db
{
    public function __construct($host,$user,$pass,$name)
    {
        try
        {
            $this->_connect($host,$user,$pass);
        }catch(Exception $e){
            die($e->getMessage());
        }

        try{
            $this->_select($name);
        }catch(Exception $e){
            die($e->getMessage());
        }
    }

    private function _connect($host,$user,$pass)
    {
        if(!mysql_connect($host,$user,$pass))
        {
            throw new Exception("Could not connect to database server");
        }else{
            mysql_connect($host,$user,$pass);
        }
    }

    private function _select($name)
    {
         if(!mysql_select_db($name))
        {
            throw new Exception("Could not select database");
        }else{
            mysql_select_db($name);
        }
    }

    public function query($query)
    {
        return mysql_query($query);
    }

    public function fetch($result)
    {
        return mysql_fetch_object($result);
    }

    public function escape($str)
    {
        return mysql_real_escape_string($str);
    }
}

?>