尝试将数组放入数组中，但它给我一个错误，提示“试图获取非对象的属性'addressLine1'”

Question

正如标题所说，我正在尝试将一个数组放入一个数组中，并希望获得带有地址信息的用户信息。当我对其进行调试时，它会以正确的结果进行迭代，但是在获得所有结果之后，将显示一条错误消息，提示“正在尝试获取非对象的属性'addressLine1'”。

  protected function filterUsers($users, $keys = [])
    {
        $data = array();

        foreach ($users as $user) {
            $entry = [
                'username' => $user->username,
                'email' => $user->email,
                'first_name' => $user->first_name,
                'last_name' => $user->last_name,
                'phone' => $user->phone,
                'emergency_phone' => $user->emergency_phone,
                'gender' => $user->gender,
                'profile_photo' => $user->profile_photo,
                'role' => $user->role,
                'status' => $user->status,
                'href' => route('users.show', ['id' => $user->user_id])
            ];
            if (in_array('address', $keys)) {


               $entry['address'] = [
                    'addressLine1' => $user->address->addressLine1,
                    'addressLine2' => $user->address->addressLine2,
                    'city' => $user->address->city,
                    'post_code' => $user->address->post_code,
                ];

            }


            $data[] = $entry;
        }
        return $data;
    }