Challenge 1 / 1

We've improved the PlanetRenderer to throw an exception if a planet has no hex color. Rejoice!

// ...

class PlanetRenderer
{
    public function render(PlanetInterface $planet)
    {
        if ($planet->getRadius() < 0) {
            throw new \Exception('Invalid radius!');
        }

        if (!$planet->getHexColor()) {
            throw new \Exception('Missing hex color');
        }
    }
}

Can you use a try-catch block to only catch the "Invalid radius!" exception?

Yes! Just mark that you want to catch the (first) exception only:

try {
    echo $renderer->render($planet);
} catch (\Exception (first) $e) {
    // here!
}

No. Well, only by checking the exception message, which is really ugly and error-prone;

try {
    echo $renderer->render($planet);
} catch (\Exception $e) {
    if ($e->getMessage() == 'Invalid radius!') {
        // here!
    }
}

Rewatch the video