Recommend another useful helper in Laravel

Yet another helper function in Laravel optional()that allows you to access properties or methods of a given object. If the given object is null, the property or method will return nullinstead error.

Take a look at the example below.

// app/Models/User.php
class User extends Model
{
    //...
    
    public function account()
    {
        //...
    }

    //...
}

// user1 存在，account 对象也存在
$user1 = User::find(1);
$accountId = $user1->account->id; // 123

// user2 存在，但是 account 对象不存在
$user2 = User::find(2);
$accountId = $user2->account->id; //这时会报: PHP Error: Trying to get property of non-object

// 如果不用 optional(), 你可能会这么判断
$accountId = $user2->account ? $user2->account->id : null; // null
$accountId = $user2->account->id ?? null; // null

// 用 optional()，简单搞定，是不看起来很优雅呢
$accountId = optional($user2->account)->id; // null

optional()Helpers are ideal when working with unavailable objects or when calling nested data in unavailable Eloquent relationships .

You might as well try it ^_^

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