Help with Laravel, DB fetch?

Question

Laravel

Good afternoon, tell me please, I ran into a problem when I access the database $post->description everything works, when I create a variable $desc = 'description' and pass it to $post->$desc it works, but when I have an array $ array = ['0' => id', '1' => 'name']; and i try to pass like $post->$array['0'] throws error Array to string conversion. how to solve this problem