如何使用php xpath-＆gt;查询从span获取数据时间？

Question

我可以通过php中的xpath-＆gt;查询从以下代码中获取数据时间值

<span class="timestamp" data-time="1395846963">33m</span>

Answer 1

尝试使用DOMDocument和DOMXPath

$str = '<span class="timestamp" data-time="1395846963">33m</span>';

$DOM = new DOMDocument();
$DOM->loadHTML($str);

$XPATH = new DOMXPATH($DOM);

$r = $XPATH->query("//span/@data-time");

var_dump($r->item(0)->nodeValue);