Validating arrays and nested values in Laravel

As frontend architectures become more complex, the need for effective data validation and processing in backend systems is crucial, and Laravel offers comprehensive solutions for managing this complexity. Laravel's validation capabilities include basic validation within controllers, using the Validator object for more complex methods, and separating validation logic from controllers through form requests. This structure allows developers to validate simple and nested attributes, including arrays and their elements, using dot notation and the asterisk (*) character for iterations. The framework supports customizing error messages and implementing advanced validation rules like `array`, `distinct`, `exclude_if`, and `sometimes`. With these features, Laravel facilitates handling complex data submission scenarios, such as those found in inventory systems and multi-page forms, providing developers with tools to create custom validation rules for diverse applications.