Online PHP editor | output for frW8k

<?php declare(strict_types=1); namespace Domain\Mixins { trait ContentAware { protected string $content; public function getContent() { return $this->content; } public function setContent(string $content) { $this->content = $content; } } use Domain\user\User; trait UserAware { protected User $author; public function getAuthor() { return $this->author; } public function setAuthor(User $author) { $this->author = $author; } } } namespace Domain\User { class User { public function __construct(public string $name){} } } namespace Domain\Forum { use Domain\Mixins; class Message { use Mixins\ContentAware, Mixins\UserAware; } } namespace { use Domain\Forum\Message; use Domain\User\User; $message = new Message; $message->setContent('Hello'); $message->setAuthor(new User('greg')); echo sprintf('%s %s', $message->getContent(), $message->getAuthor()->name); }