使用SimpleXML获取第一个XML元素

Question

ok, this might be a stupid question, but how do I get one single element from an XML document?

I have this XML

$element = $response['linkedin'];

SimpleXMLElement Object
( 
    [id] => 575677478478
    [first-name] => John
    [last-name] => Doe
    [email-address] => [e-mail]
    [picture-url] => http://m3.licdn.com/mpr/mprx/123
    [headline] => Headline goes here
    [industry] => Internet
    [num-connections] => 71

I just want to assign first-name as $firstName

I can loop over it using xPath, but that just seems like overkill.

ex:

$fName = $element->xpath('first-name');
foreach ($fName as $name) 
{
    $firstName = $name;
}

Answer 1

Answer form per request. ^^

If that SimpleXMLElement is the only one contained within $resource['linkedin'], you can change it with:

$resource['linkedin']->{'first-name'} = $name;

That allows you direct access to the element without needing to do an xpath on it. ^^