非常简单，刚刚有人在讨论mysqli，1
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/*
*MYSQLi数据库操作类
*/
class db{
private $host;
private $user;
private $pass;
private $name;
private $link;
function __construct($host,$user,$pass,$name){
$this->link=@mysqli_connect($host,$user,$pass,$name) or die("数据库链接失败...");
mysqli_query($this->link,'set names utf8');
}
function query($sql){
return mysqli_query($this->link,$sql);
}
function fetch($query){
return mysqli\_fetch\_array($query);
}
function row($query){
$result=$this->query($query);
return mysqli\_fetch\_array($result);
}
function num($query){
return mysqli\_num\_rows($query);
}
function last_id(){
return mysqli\_insert\_id($this->link);
}
function error(){
return mysqli_error($this->link);
}
function close(){
return mysqli_close($this->link);
}
}
