将SimpleXMLElement Object [content]元素组合成一个变量

时间:2012-02-10 19:55:43

标签: php curl rss simplexml

您好我有以下php代码,从输出$ doc我想要获取所有[content]项目并将它们放在一起用于标签云。如何将所有[content]项目提取到一个变量中?

$ch = curl_init("http://api.sysomos.com/hb/v1/heartbeat/rss?startid=0&hbrss=DUpnCTqppKjx4q1U6FXd5SWOPFUa2ltLm1haXJAYi1hbmQtcS5jby51aw..&maxC=6&max=30&hid=2535&  fTs=me&dRg=7&tab=beats&scO=Recency&");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
$data = curl_exec($ch);
curl_close($ch);
$doc = new SimpleXmlElement($data, LIBXML_NOCDATA);
print_r($doc);

1 个答案:

答案 0 :(得分:0)

如果没有进一步说明,您似乎无法获取各个<content>节点的字符串值?如果是这样,请考虑以下事项:

$str = '
<xml>
  <content>content1</content>
  <somethingElse>DOH!</somethingElse>
  <content>content2</content>
  <content>content3</content>
</xml>
';

$doc = new SimpleXMLElement($str);
$vals = array();
foreach ($doc->content as $content) {
  $vals[] = (string) $content;
}

print_r($vals);

这将输出:

Array
(
    [0] => content1
    [1] => content2
    [2] => content3
)

<强>更新

根据您的评论,您可以使用上述相同的策略,并执行额外的implode调用:

$vals = implode('', $vals);
echo $vals; // outputs: content1content2content3

或者,修改原始循环:

$vals = '';
foreach ($doc->content as $content) {
  $vals .= (string) $content;
}
echo $vals; // outputs: content1content2content3