Note that getTraits will NOT return any traits inherited from a parent.
This is currently viewed as the desired behavior. See https://bugs.php.net/bug.php?id=61554
(PHP >= 5.4.0)
ReflectionClass::getTraits — Returns an array of traits used by this class
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Returns an array with trait names in keys and instances of trait's
ReflectionClass in values.
Returns NULL
in case of an error.
Note that getTraits will NOT return any traits inherited from a parent.
This is currently viewed as the desired behavior. See https://bugs.php.net/bug.php?id=61554