class_parents(): object or string expected at ../vendor/laravel/framework/src/Illuminate/Support/helpers.php:92

[nnerijuss]

• Laravel Version: 7.7.0
• PHP Version: 7.4
• Database Driver & Version: Mysql 8

Description:

PHP throws exception when refreshing model:

class_parents(): object or string expected at /var/www/laravel/vendor/laravel/framework/src/Illuminate/Support/helpers.php:92)
[stacktrace]
#0 [internal function]: Illuminate\\Foundation\\Bootstrap\\HandleExceptions->handleError()
#1 /var/www/laravel/vendor/laravel/framework/src/Illuminate/Support/helpers.php(92): class_parents()
#2 /var/www/laravel/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1184): class_uses_recursive()
#3 /var/www/laravel/vendor/laravel/framework/src/Illuminate/Support/Traits/EnumeratesValues.php(669): Illuminate\\Database\\Eloquent\\Model->Illuminate\\Database\\Eloquent\\{closure}()
#4 [internal function]: Illuminate\\Support\\Collection->Illuminate\\Support\\Traits\\{closure}()
#5 /var/www/laravel/vendor/laravel/framework/src/Illuminate/Support/Arr.php(647): array_filter()
#6 /var/www/laravel/vendor/laravel/framework/src/Illuminate/Support/Collection.php(352): Illuminate\\Support\\Arr::where()
#7 /var/www/laravel/vendor/laravel/framework/src/Illuminate/Support/Traits/EnumeratesValues.php(671): Illuminate\\Support\\Collection->filter()
#8 /var/www/laravel/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1185): Illuminate\\Support\\Collection->reject()
#9 ... Illuminate\\Database\\Eloquent\\Model->refresh()
...

Steps To Reproduce:

1. Load model without relationships $model = Model::find(1)
2. Refresh it $model->refresh()

I think the problem is in Model.php refresh function:

$this->load(collect($this->relations)->reject(function ($relation) {
            return $relation instanceof Pivot
                || in_array(AsPivot::class, class_uses_recursive($relation), true);
})->keys()->all());

[drfraker]

Can confirm this is happening to me too.

PHP 7.4
Laravel 7.7.0
Mysql 8

Reverted back to 7.6 and it is not happening

[driesvints]

Thanks for reporting. This was due to #32420

We're looking into a fix atm.

[taylorotwell]

Releasing patch now.