获取使用Model::with()指定的模型的隐藏属性

$user = User::with(['profile' => function ($query) {
    $query->makeVisible('hidden_attribute');
}])->find($userId);

// 现在可以访问 hidden_attribute
echo $user->profile->hidden_attribute;

$user = User::with('profile')->find($userId);

// 使用 toArray() 方法时传入第二个参数
$array = $user->profile->toArray([], ['hidden_attribute']);

// 或者使用 toJson() 方法时传入第二个参数
$json = $user->profile->toJson([], ['hidden_attribute']);

class Profile extends Model
{
    protected $hidden = ['hidden_attribute'];

    public function getHiddenAttributeAttribute()
    {
        return $this->attributes['hidden_attribute'];
    }
}

$user = User::with('profile')->find($userId);
echo $user->profile->hidden_attribute; // 通过自定义访问器访问

class User extends Model
{
    public function profile()
    {
        return $this->hasOne(Profile::class);
    }
}

class Profile extends Model
{
    protected $hidden = ['secret'];

    public function getSecretAttribute($value)
    {
        return $value;
    }
}

// 获取用户及其配置文件，并访问隐藏属性
$user = User::with(['profile' => function ($query) {
    $query->makeVisible('secret');
}])->find(1);

echo $user->profile->secret; // 输出隐藏属性