我无法弄清楚或了解如何使用PHP permission="allowed"
解析此xml中的simplexml_load_file
值。
基本结构是
<?xml version='1.0' encoding='UTF-8'?>
<entry xmlns="http://www.w3.org/2005/Atom" xmlns:media="http://search.yahoo.com/mrss/" xmlns:gd="http://schemas.google.com/g/2005" xmlns:yt="http://gdata.youtube.com/schemas/2007" gd:etag="W/"DkEDSH47eCp7I2A9WhJbEEQ."">
<yt:accessControl action="comment" permission="allowed" />
<yt:accessControl action="commentVote" permission="allowed" />
<yt:accessControl action="videoRespond" permission="moderated" />
<yt:accessControl action="rate" permission="allowed" />
<yt:accessControl action="embed" permission="allowed" />
<yt:accessControl action="list" permission="allowed" />
<yt:accessControl action="autoPlay" permission="allowed" />
<yt:accessControl action="syndicate" permission="allowed" />
如何获取最后一行permission=allowed
属性的值?
答案 0 :(得分:2)
您想使用 XPath 来检索记录,它是一种XML查询语言。
请参阅SimpleXMLElement's xpath()和registerXPathNamespace()方法。 W3Schools解释XPath's syntax here。
对于此XML
$xml = <<<EOD
<book xmlns:chap="http://example.org/chapter-title">
<title>My Book</title>
</book>
EOD;
你要注册这样的命名空间:
$sxe = new SimpleXMLElement($xml);
$sxe->registerXPathNamespace('c', 'http://example.org/chapter-title');
$result = $sxe->xpath('//c:title');
答案 1 :(得分:0)
这太令人讨厌了......
($xml = simplexml_load_file($source);
)
我可以使用以下命令获取权限属性:
$xml->children('http://gdata.youtube.com/schemas/2007')->accessControl[4]->attributes()->permission;