Description:
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Had the following: fatal error: Cannot call __clone() method on objects - use 'clone $obj' instead.

Dig some digging, stumbled upon http://www.php.net/ChangeLog-5.php mentioning the following:

"Redesigned clone by adding a clone keyword (clone $obj) and copying all properties before __clone() is called. Also allows calling parent __clone function by using parent::__clone(). (Zeev, Andi)"

However the document http://www.php.net/zend-engine-2.php is in conflict with this mentioning a lot about __clone()

"An object copy is created by calling the object's __clone() method:"

Please fix the zend-engine-2 documentation.