[SDK-3585] Fix: Missing Code error on Callback Route for Octane Customers

[evansims]

Changes

This PR resolves an issue for customers using our Laravel SDK with Laravel Octane.

Bug: With this combination, upon a user returning to the callback route (Auth0\Laravel\Http\Controller\Stateful\Callback) they would be presented with a Missing Code error.

Cause: The underlying Auth0 PHP SDK fetches the code and state parameters of the callback using the standard PHP super global _GET. This super global is not available when running Laravel under Octane. Within our Laravel SDK, we are (correctly) using Laravel's Illuminate\Http\Request->query() method to check for the presence of these values. However, we had not handed these values off directly to the underlying Auth0 PHP SDK, and instead allowed it to attempt to extract them itself from _GET, which would fail under Octane.

Fix: The Laravel SDK now correctly extracts these values using Octane-compatible Laravel APIs and hands them off to the underlying Auth0 PHP SDK directly, avoiding the conflict from the missing _GET super global.

References

Resolves #218 (comment)

Testing

Contributor Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 code of conduct