I think the following example is much better, however I am not sure it's a right direction. Namespaces are intended to declare names that can conflict with names from other namespaces (including global namespace), do I am not sure that we need special keyword for internal functions.
This is something that is bothering me too - should we distinguish between internal functions and just php global functions? If not - we should be aware that when we define namespaced function, global function may not be existing yet.
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