php - Laravel 5.5 Override vendor class

Question

I'm trying to override (not extend) a vendor class. So whenever the vendor class gets called (within the vendor code), I want it to call my custom class.

It looks like I need to alias the class in my App/Providers/AppServiceProvider

I've tried this:

$loader = IlluminateFoundationAliasLoader::getInstance();
$loader->alias('VendorVendorNameClass', 'AppVendorMyCustomClass');

But this doesn't do anything.

I can get my class registered fine:

 $this->app->register(
       'AppVendorMyCustomClass'
   );

But this then fails as the constructor relys on other variables not available at that point. I literally just need the app to override any call to VendorVendorNameClass with AppVendorMyCustomClass

Answer 1

So the solution was create a new ServiceProvider

php artisan make:provider MyServiceProvider

Which extended the Vendor service provider (found within config/app.php). Within that ServiceProvider, add my alias within the overridden Register method

 $loader->alias('VendorVendorNameClass', 'AppVendorMyCustomClass');