$mock = $this->getMockBuilder('MyClass') ->getMock(); $name = $mock->getName(); echo $name; // output will be "MyClass"In the above code, we create a mock object using PHPUnit's `getMockBuilder` method, and then retrieve the name of the mock object using the `getName` method. The output will be the name of the class that was mocked, which in this case is "MyClass". The package library for PHPUnit_Framework_MockObject_MockObject is PHPunit.