How to make button function as Input?

Question

JavaScript

How can I make these 2 codes equal?
Option 1

<form action="" method="GET">
<input type="submit" name="submit" value="Сохранить" />
</form>

Option 2

<form action="" method="GET">
<button type="submit" name="submit" class="btn border-slate text-slate-800 btn-flat">Сохранить</button>
</form>

<?php 
if($_GET['submit']){ бла бла }

Why does option 1 work and option 2 doesn't?

Answer 1

Google 3d round carousel jquery

Answer 2

Put this
https://github.com/specious/cloud9carousel

Answer 3

In the second case, there is no value.
Or redo the check in php. Instead , use But both - shitcode.