There are, for example, the trait:
public function myTraitFunction()
If you use it in class:
the operator "use" uses namespace My\Name\Space\Traits\MyTrait. That is not going to go from the root, as it is used in the classroom. How, then, to use the traits defined in other namespaces?
Documentation php.net in one of the reviews written about it too, but was not told how to be.