public function sub_tax()
{
return number_format((double) (Sales::sub_price() * Sales::get_tax()), 2, '.', '');
}
<i class="icon-expand"></i>
<img class="block" src="data:image;base64,<?php
echo $obj[0]->stud_dp;
?>
" alt="">
</a>
</div>
</div>
</div>
</div>
<!-- Total block for total price display -->
<?php
if (Session::exists('products') && Session::get('products') != null) {
$get_sales = new Sales();
$sub = $get_sales->sub_price();
$gst = $get_sales->sub_tax();
$pay = $get_sales->calc_total();
?>
<div class="col-lg-12 col-xs-12 col-md-6">
<div class="block">
<h2>Total</h2>
<div class="block-body">
<div style="border-bottom:1px solid gray">
<label>Item in Cart</label>
<span class="pull-right"><?php
echo $total_item;
?>
</span>
</div>
<div>
