Radio button $_POST

Issue

How to know the value of clicked button

<input type="radio" name="radio">Yes<br>
<input type="radio" name="radio">No

php part

$option1= $_POST['radio'];

When i echo it it always say's "ON".

Solution

You need to give a value attribute:

<input type="radio" name="radio" value="yes">Yes<br>
<input type="radio" name="radio" value="no">No

Answered By - Barmar