Online PHP editor | refs for 4XWI4

<?php class User { protected $profile; public function setProfile(Profile $profile) { $this->profile = $profile; } } class Profile { protected $user; public function __construct(User $user) { $this->user = $user; $user->setProfile($this); } } $user1 = new User(); $profile1 = new Profile($user1); $user2 = new User(); $profile2 = new Profile($user2); var_dump(get_object_vars($profile1) == get_object_vars($profile2));