laravel relation one to one

1// User model
2public function phone()
3{
4  return $this->hasOne(Phone::class);
5}
6
7// User controller
8$phone = User::find(1)->phone;

1<?php
2
3namespace App\Models;
4
5use Illuminate\Database\Eloquent\Model;
6
7class User extends Model
8{
9    /**
10     * Get the phone associated with the user.
11     */
12    public function phone()
13    {
14        return $this->hasOne(Phone::class);
15    }
16}