form demo

<div class="fb-txt-left-con">Contact:</div>

          <div class="fb-input-right-conradio">
                Can we contact you by telephone:<br /><br />
                <div class="fb-input-right-conradio-back">
                <input type="radio" name="contact2" id="contact2a" value="yes" /> Yes &nbsp;
                <input type="radio" name="contact2" id="contact2b" value="no" /> No
                </div>

          </div>

php code

<?php

$contact2=$_POST['contact2'];

?>