<?php
include_once('../includes/db_connect.php');
if(isset($_POST['countryid'])){
    $countryid=$_POST['countryid'];
$cmpame="<option value='0'>Online Campus</option>";
$listcampus=mysqli_query($con,"SELECT * FROM campuses WHERE countryid='$countryid' ORDER BY campusname ASC");
while($lc=mysqli_fetch_assoc($listcampus)){
    $cmpid=$lc['id'];
    $cmpname=$lc['campusname'];
    $cmpame.="<option value='$cmpid'>.$cmpname.</option>";
}
echo $cmpame;
}
?>