从url获取rss时出错 - Error when get rss from a url?

我有一个示例代码:

<?php 
header('Content-Type: text/html; charset=utf-8');
$doc = new DOMDocument();
$doc->load('http://www.haivl.com/rss');
$items = $doc->getElementsByTagName('item');
foreach ($items as $key => $item) {
    $titles = $item->getElementsByTagName( "title" );
    $title = $titles->item(0)->nodeValue;
    echo $title;
}
?>

我不能从这个url获得标题，为什么错误，可以帮助我修复这个错误!

问题出在这两行

$title = $titles->item(0)->nodeValue;
echo $titles;

您将标题值分配给$title，但回显$titles。$titles是DOMNodeList，不能隐式转换为字符串。你想做

$title = $titles->item(0)->nodeValue;
echo $title;