编辑

使用laravel集合forget（）

$user = User::where('id', 1)->with('posts')->first();
$posts = $user->posts;
$user = collect($user)->forgot('posts')->all(); // this is what you must do. Be careful, this is now an array.
return response(['user' => $user, 'posts' => $posts]);

用户表

id  |  name
1   |  John
2   |  Adam

poststable

id  |  user_id  | title
1   |     1     | post_1
2   |     3     | post_2
3   |     1     | post_3

在本例中，用户有很多帖子。并且帖子属于用户。

用户：：class

public function posts() {
    return $this->hasMany(Post::class); // this will bind 'user_id' from the posts table to the 'id' of the users table
}

Post：：class

public function user() {
    return $this->belongsTo(User::class);
}

然后，您可以通过

@foreach($user->posts as $post)
    {{ $post->title }}
@endforeach

为了最有效地从数据库中检索数据并最终得到“平面”数组，您仍然应该使用关系来检索它们，如下所示：

$user = User::where('id', 1)->first();
$posts = $user->posts;
return response(['user' => $user->makeHidden('posts'), 'posts' => $posts])

如果你出于某种原因不想利用关系

$user = User::where('id', 1)->first();
$posts = Post::where('user_id', $user->id)->get();
return response(['user' => $user, 'posts' => $posts])

你可以通过使用资源来实现这一点
1-首先创建新的用户资源：

<?php

namespace App\Http\Resources;

use Illuminate\Http\Resources\Json\JsonResource;

class User extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function toArray($request)
    {
        return [
            "user"=>[
              'id' => $this->id,
              'name' => $this->name,
              'email' => $this->email,  
              ],
            "posts"=>$this->posts
        ];
    }
}

2-在您的控制器中：

$users = User::with('posts')->get()
 return UserResource::collection($users);

Laravel文档

使用unset方法，帖子关系将被删除：

$user = User::where('id', 1)->first();
$posts = $user->posts;
// remove posts relation from user collection
unset($user->posts);
return response(['user' => $user->makeHidden('posts'), 'posts' => $posts]);