function testDuck(Duck $duck) { $duck->quack(); $duck->fly(); }
public function fly() { if (rand(0, 4) == 0) { $this->duck->fly(); } }
function testDuck(Duck $duck) { $duck->quack(); $duck->fly(); }
public function fly() { if (rand(0, 4) == 0) { $this->duck->fly(); } }