"tinker" not defined code example
Example: "tinker" not defined
Step 1 : Install tinker
composer require laravel/tinker
Step 2 : Add provider class name into /config/app.php file
If you open the config/app.php file included with Laravel, you will see a providers array.
providers' => [ .
.
App\Providers\CountdownTimersServiceProvider::class,
Laravel\Tinker\TinkerServiceProvider::class
],