php - SimpleXML如何获取属性First Name ==“John”的节点？可以不循环吗？

Question

我必须遍历整个对象吗？

<Employees>
  <Employee name="John"> ... </Employee>
  <Employee name="Will"> ... </Employee>
  <Employee name="Jack"> ... </Employee>
</Employees>

我正在使用以下方法读取 XML 文件：

$employees = simplexml_load_file($xmlfile);

$str = "John";
//find node with name matching $str assign it as $emp
$emp = $employees->Employee['name='.$str]; //my attempt