How to pass GET separated by commas without using JS?

Question

HTML

Good day, dear forum users!
I need your help.
The page has a form with several <select>and <input>. It is necessary to make sure that when sending, they are indicated separated by commas.
Instead of:
site.ru/page?q=1&w=2&e=3
This:
site.ru/page?1,2,3
Are there ways to implement this without the help of JS? I would like to know your advice.
Thank you in advance!

Answer 1

What for? You can create arrays:

<select name="select[]"></select>
<select name="select[]"></select>
<input name="input[]">
<input name="input[]">

In this case, an array of select and input will be sent to the server.