thinkphp多态关联

• article表
  
• book表
  
• comment表
  

morphMany('Comment', 'commentable','Book');
    }
}

morphMany('Comment', 'commentable','Article');
    }
}

morphTo();
    }
}

$article = Article::get(1);//获取评论
        foreach ($article->comments as $comment) {
            var_dump($comment);
        }

$comment = Comment::get(1);//获取所属模型
        $commentable = $comment->commentable;
        return json($commentable);