Challenge 1 / 1

Check out this sweet new function I created, which leverages a nifty Duck class:

function duckPerformance($duck) {
    $duck->quack();
    $duck->swim();
}

It works great - and the crowd loves our duck. But now, let's add a type to the argument:

function duckPerformance(Duck $duck) {
    $duck->quack();
    $duck->swim();
}

Which of the following is NOT true:

If I accidentally pass a Hippopotamus object to my function, instead of trying to make it "quack" and "swim", I'll get a fatal error.

Hmm, probably asking a hippopotamus to quack would have been fatal anyway...

My editor will have autocompletion when I type $duck->.

The Duck object will now be initialized when passed to the function.

The code will run exactly like before without any difference.