Is PHP instantiation by class string name an example of reflection?

Question

For example, in PHP you can do something like this

$className = 'MyClassName';
$instance = new $className();

Would this be considered an example of reflection in php and/or other languages that support similar mechanisms? Or would the meaning of reflection be reserved for something like the below.

$otherInstance = new MyClass();
$className = get_class($otherInstance); #this line would be reflection
$instance = new $className();           #but this wouldn't?

In addition, would instantiation through the usage of for example ReflectionClass::newInstance be different in these cases and be considered a use of reflection or not?