小弟我想加数据库 要如何加呀 小弟我不知道呀 那个给小弟我解释

<?php$xml=<<<XML<?xml version="1.0" encoding="utf-8"?><item>  <list name="Intro something.Please custom your title text content" videotitle="Matrix film demo 1" link="video/ani1.flv" >  <thumb>thumb/1.jpg</thumb>     </list>     <list name="Intro something.Please custom your title text content" videotitle="Final matrix demo 2" link="video/ani2.flv" >  <thumb>thumb/2.jpg</thumb>     </list>    <list name="Intro something.Please custom your title text content" videotitle="Matrix film demo 1" link="video/ani1.flv" >  <thumb>thumb/1.jpg</thumb>     </list>     <list name="Intro something.Please custom your title text content" videotitle="Final matrix demo 2" link="video/ani2.flv" >  <thumb>thumb/2.jpg</thumb>     </list>  <list name="Intro something.Please custom your title text content" videotitle="Matrix film demo 1" link="video/ani1.flv" >  <thumb>thumb/1.jpg</thumb>     </list>     <list name="Intro something.Please custom your title text content" videotitle="Final matrix demo 2" link="video/ani1.flv" >  <thumb>thumb/2.jpg</thumb>     </list>  <list name="Intro something.Please custom your title text content" videotitle="Matrix film demo 1" link="video/ani1.flv" >  <thumb>thumb/1.jpg</thumb>     </list>     <list name="Intro something.Please custom your title text content" videotitle="Final matrix demo 2" link="video/ani1.flv" >  <thumb>thumb/2.jpg</thumb>     </list></item>XML;$obj=simplexml_load_string($xml);foreach($obj->list as $v){    $arr=(array)$v->attributes();    $arr[[email protected]']['thumb']=(string)$v->thumb;    $list[]=$arr[[email protected]'];};print_r($list);