Description:
------------
In PHP 5.4 xpath() returns SimpleXMLObjects which casted to array give empty arrays. If tags have text values they aren't present in object like in PHP 5.3.

Test script:
---------------
$xml = simplexml_load_string('
<person>
  <profile>
    <name>PHP developer</name>
  </profile>
</person>');

// get all names
$xml = $xml->xpath('/person/profile/name');
// get first result
$xml = reset($xml);
// show result
print_r($xml);

Expected result:
----------------
In PHP 5.3 the (expected) result is
SimpleXMLElement Object ( [0] => PHP developer )

Casting this to an array will result: array(0 => 'PHP developer') which is ok.

Actual result:
--------------
In PHP 5.4 the result is 
SimpleXMLElement Object ( )

If we cast this to an array will result an empty array, but we expected text values.