带有 curl 的 xpath 给出空结果？

Question

这段代码给了我一个空的结果。我希望它能从 XML 文件中打印出标题。我需要使用 Curl 来获取文件。

<?php    
function get_url($url)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, $url);
    $data = curl_exec($ch);
    curl_close($ch);

    return $data;
}

$xml_content = get_url("http://www.e24.se/?service=rss&type=latest");

$dom = new DOMDocument();
@$dom->loadXML($xml_content);
$xpath = new DomXPath($dom);
$results = $xpath->query('//channel//title/text()');


foreach ($results as $result) 
{
    echo $result->title . "<br />";
}
?>

Answer 1

我已经找到了。循环是错误的。应该是……

foreach ($results as $result) 
{
    echo $result->nodeValue . "<br />";
}