你好,我有以下php代码,我想从输出$doc中获取所有的[content]项,并将它们放在一起,以便在标记云中使用。如何将所有[内容]项提取到一个变量中?
$ch = curl_init("http://api.sysomos.com/hb/v1/heartbeat/rss?startid=0&hbrss=DUpnCTqppKjx4q1U6FXd5SWOPFUa2ltLm1haXJAYi1hbmQtcS5jby51aw..&maxC=6&max=30&hid=2535& fTs=me&dRg=7&tab=beats&scO=Recency&");
curl_setopt($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);
如果不进一步说明,您似乎在获取单个<content>
节点的字符串值时遇到了问题?如果是,请考虑以下内容:
$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
)
更新
根据你的评论,你可以使用上面相同的策略,再打一个implode
电话,比如
$vals = implode('', $vals);
echo $vals; // outputs: content1content2content3
或者,将原始循环修改为:
$vals = '';
foreach ($doc->content as $content) {
$vals .= (string) $content;
}
echo $vals; // outputs: content1content2content3