<?xml version="1.0" encoding="utf-8" ?> 
<items>
<aaa>
</aaa>
<aaa>
</aaa>
<aaa>
    <bbb>
    </bbb>
    <bbb>
    </bbb>
    <bbb>
        <ccc>
            Only this childnod what I need
        </ccc>
        <ccc>
            And this one
        </ccc>
    </bbb>
</aaa>
</items>

我想用PHP解析上面给出的XML.我不知道如何获得这两个子节点.

当我使用下面的代码时,它会触发错误：警告：main()[function.main]：当只有0个这样的元素存在时,不能添加元素bbb编号2

<?PHP
header('Content-type:text/html; charset=utf-8');
$xml = simplexml_load_file('2.xml');
    foreach ($xml->aaa[2]->bbb as $bbb){
        echo $bbb[2]->$ccc; // wrong in here
        echo $bbb[3]->$ccc;
    }
?>