PHP 5.2* Nesting level too deep - recursive dependency?

We just upgraded from PHP 5.1.6 and spent about 12 hours trying to find the cause of this error.

I happened to find an answer on google which stated:

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Basically, his problem was using the "non-strict" evaluation for checking if two objects were equal to each other (== instead of ===). This compares everything about them, down to the properties - even if they're references to other properties inside of the same class (which is where the problem lies).

So, the fix is simple - === instead of == when comparing those objects. You'll be happier for the change.
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So on line 62 of class.xml2array.php I changed this:

if ($child->node_name() == $testnode->node_name() && $child != $testnode)

to THIS:

if ($child->node_name() === $testnode->node_name() && $child !== $testnode)

Now all is well again!

I hope this helps somebody out! :-)

Thanks... better late than never, i changed this in the source as well.