如何获取用户选择的按钮值并在laravel 5.4中的控制器上使用它

Question

I am new with php and laravel and I have a problem:

How to get a button value chosen by the user and use it on the controller to retrieve specific information from database.

I get the "termkey" from the database and I need to know the value selected by the user.

This is my view :

Answer 1

<button name="termkey">{{ $ca->termkey }}</button>

change the upper to

<button name="termkey" value="{{ $ca->termkey }}">{{ $ca->termkey }}</button>

then in controller

$request->input('termkey');