Description:
------------
An extra magic method that works in the same was as __clone but is called when an object is assigned in the normal way.  Code earlier that php5 could be fixed in one place by adding a single method to a class rather than having to find every $obj1 = $obj2 line in your scripts.

Reproduce code:
---------------
<?php
class MyClass
{
	public function __copy
	{
		echo 'I want to return a copy, not a reference, like in olden days';
		return clone($this);
	}
}

$obj1 = new MyClass;

$obj2 = $obj1;
?>