What is the best way to drag the form to the main one?

Question

symfony

There is also a HomeController main page controller
, on the main page there should be a form Form - a separate entity (Book) with its own controller
and classes (filled in several stages, for each stage - a separate class) forms to make a method and access it from HomeController

Answer 1

Best Practice
Define your forms as PHP classes.

https://symfony.com/doc/current/best_practices/for...
This way you can use the same form in different places while doing DRY .