How to pass arguments to Laravel factories?

My code for adding polymorphic 'Admin' users was:

// run model factory
factory(App\Admin::class, 3)->create()->each(function ($admin) {

    $admin->user()->save(

        // solved: https://laravel.com/docs/master/database-testing#using-factories (Overriding attributes)
        factory(App\User::class)->make([
              'userable_id' => $admin->id,
              'userable_type' => App\Admin::class
        ])
    );
});

Hope this helps.

Send attribute,

factory(App\User::class)->create(['businessId' => $businessId]);

Retrieve it,

$factory->define(App\User::class, function (Faker $faker, $businessInfo) {
    //$businessInfo['businessId']
});

The attributes you pass to the create function will be passed into your model definition callback as the second argument.

---

In your case you don't even need to access those attributes, since they'll automatically be merged in:

$business = factory(App\Business::class)->create();

factory(App\User::class, 5)->create([
    'business_id' => $business->id,
]);

Adapt this to your needs.