如何通过php xpath-> query从span获取数据时间？

Question

何可我从xpath->查询下面的代码获取数据时间值在PHP

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

Answer 1

试试这个，使用DOM文档和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);