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<?php $list1 = new \SplDoublyLinkedList(); $list1->push(1); $list1->push(2); $list2 = clone $list1; $list2->push(3); $list2->push(4); var_export(iterator_to_array($list1)); print "\n"; var_export(iterator_to_array($list2)); print "\n";
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 1, 1 => 2, ) array ( 0 => 1, 1 => 2, 2 => 3, 3 => 4, )

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