在SimpleXML和检索HREF节点值方面需要帮助

<?php

$url = \'file.xml\';

foreach(simplexml_load_file($url)->info->content->item as $it) {
    echo $it->site-page-href;
}

?> 

<?xml version=\"1.0\" encoding=\"utf-8\"?>
<info>
    <content>
        <item>
            <site>
                <page>
                    <href>http://domain.com</href>
                </page>
            </site>
        </item>
    </content>
<info>

echo $it->site-page-href;

echo
$it->site->page->href;

</info>

->info

simplexml_load_file($url)->content->item

simplexml_load_file($url)->info->content->item

 $xml = simplexml_load_file($url);
 $href = $xml->xpath(\".//href\");
 foreach($href as $h) {
    var_dump($h);
 }

echo $it->site->page->href;

echo $it->site-page-href;

</info>

<info>