<?php

class DBDA

{

public $host="localhost";

public $uid = "root";

public $pwd = "123";

public $dbname = "mydb";

//成员方法

public function Query($sql,$type=1)

{

$db = new MySQLi($this->host,$this->uid,$this->pwd,$this->dbname);

$r = $db->query($sql);

if($type==1)

{

return $r->fetch_all();

}

else

{

return $r;

}

}

}