Why do _token and xsrf-token differ in laravel?

@hal.littel 

In Laravel, _token is a CSRF token field that is automatically generated for each form by the FormRequest middleware. This token helps prevent Cross-Site Request Forgery (CSRF) attacks by ensuring that the request is legitimate and coming from the correct user.

On the other hand, xsrf-token is used by Laravel's built-in Ajax request handling. This token is generated and stored in a cookie by the VerifyCsrfToken middleware and is sent with each Ajax request to prevent CSRF attacks on Ajax requests.

The reason why _token and xsrf-token differ in Laravel is because they serve different purposes and are used in different contexts within the framework. _token is used for regular form submissions, while xsrf-token is used for Ajax requests. Both tokens help protect the application from CSRF attacks, but they are implemented in slightly different ways due to the different nature of form submissions and Ajax requests.