Description:
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When accessing a simplexml node as array, I always get an empty simplexml object. 

If I cast the node to string, the behaviour is correct. 

If the parent node contains nothing but the child node (not even a newline) then 
the behaviour is also correct.

Under php 5.3, the behaviour is correct.

Test script:
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$rec1 = simplexml_load_string("<foo><bar>aa</bar>\n</foo>");
$rec2 = simplexml_load_string("<foo><bar>aa</bar></foo>");

if ($rec1->bar[0])      echo "NONEMPTY1\n"; # not reached, bug
if ($rec1->bar[0] . "") echo "NONEMPTY2\n"; # correct
if ($rec2->bar[0])      echo "NONEMPTY3\n"; # correct


Expected result:
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NONEMPTY1
NONEMPTY2
NONEMPTY3


Actual result:
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NONEMPTY2
NONEMPTY3