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数据库操作类

Jun 06, 2016 pm 08:45 PM
mysql php

PHP 写了一个操作类,但是要实例化两次(这边有两个数据库)操作类应该怎么写。

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PHP 写了一个操作类,但是要实例化两次(这边有两个数据库)操作类应该怎么写。

增加一个selectdatabase的操作不行吗?

例子

<code>class Db{
    function selectDb($dbname,$link){
       mysql_select_db($dbname, $link);
    }
    function link($host,$user,$pass){
       $link=mysql_connect($host,$user,$pass);
       return $link;
    }
function query(...){...}
....
}
</code>
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你在类中创建,看看能不能行
使用的时候只需要试用一下selectdb
使用方法 类似

$db=new Db;
$link=$db->link(......);
$db->selectdb('admin');
$result=$db->query('select * frome admin');
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我这举了个可行性的例子,具体的可以参照现成的数据库类进行相应修改。

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