如何使用PHP xpath->查询从span获取数据时间

how to get data-time from span with php xpath->query?

如何在php中使用xpath->查询从以下代码中获取数据时间值

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

试试这个，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);