Description:
------------
Then converting a text value of a boolean to an actual boolean PHP crashes after doing the conversion.  If you don't convert to boolean and compare text to text it is fine.



Reproduce code:
---------------
<?
$XML = simplexml_load_file("test.xml");
if($XML['boolean'] == "true") {echo "Attribute is the text true\n";}
if($XML['boolean'] == true) {echo "Attribute is the boolean true\n";}
?>

XML file contents (1 line):
<test boolean="true"/>


Expected result:
----------------
Attribute is the text true
Attribute is the boolean true



Actual result:
--------------
Attribute is the text true
Attribute is the boolean true

But PHP crashed.