html Input form wont submit? - html

Question

So simply trying to make a html form submit but my layout uses a lot of divs and classes and doesn't seem to be getting the names / ids of them to post i think its not working due to everything inside the form the div's etc but of course this is the layout its late in the morning so could be missing something/ missed something out
<?php
if (isset($_POST["submit"]) && !empty($_POST["submit"])) {
echo "testing";
}
?>
<h3 class="widget-title text-dark">
Cart summary
</h3>
<div class="clearfix"></div>
</div>
<div class="widget-body">
<div class="row">
<form action="checkout.php" method="POST">
<div class="col-sm-6 margin-b-30">
<div class="row">
<div class="col-sm-6">
<label>First Name*</label>
<input type="text" class="form-control" id="fname" name="fname" placeholder="John"> </div>
<!--/form-group-->
<div class="col-sm-6">
<div class="form-group">
<label>Last Name*</label>
<input type="text" class="form-control" id="lname" name="lname" placeholder="Doe"> </div>
<!--/form-group-->
</div>
</div>
<div class="col-sm-12">
<div class="form-group">
<label>Full Address*</label>
<input type="text" class="form-control" id="Address" placeholder="124, Lorem Street.."> </div>
<!--/form-group-->
</div>
<div class="col-sm-6">
<div class="form-group">
<label>Post code*</label>
<input type="text" class="form-control" id="Post code" placeholder="G52 2LW"> </div>
<!--/form-group-->
</div>
<div class="col-sm-6">
<div class="form-group">
<label>phone*</label>
<input type="text" class="form-control" id="phone" placeholder="123-345-3322"> </div>
<!--/form-group-->
</div>
<div class="payment-option">
<ul class=" list-unstyled">
<li>
<label class="custom-control custom-radio m-b-20">
<input id="radioStacked1" name="radio-stacked" type="radio" class="custom-control-input"> <span class="custom-control-indicator"></span> <span class="custom-control-description">Payment on delivery</span>
<br> <span>Please send your cheque to Store Name, Store Street, Store Town, Store State / County, Store Postcode.</span> </label>
</li>
<li>
<label class="custom-control custom-radio m-b-10">
<input name="radio-stacked" name="submit2" type="radio" class="custom-control-input"> <span class="custom-control-indicator"></span> <span class="custom-control-description">Paypal <img src="images/paypal.jpg" alt="" width="90"></span> </label>
</li>
</ul>
<p class="text-xs-center"> Pay now </p>
</div>
</div>
</form>
A big thank you in advance
http://prntscr.com/g7gc12

Answer 1

ok i fixed it it was the button i changed this
<p class="text-xs-center"> Pay now </p>
to
<div class="col-xs-12">
<button class="btn btn-lg theme-btn" type="submit">Update Info</button>
</div>
Problem fixed thank you