function checkUsernameExist($username)
{
$result = "NotExist";
$sql = "SELECT * FROM `userlogin` WHERE `username`='" . $username . "'";
$dbObj = new InteractDatabase();
$res = $dbObj->getData($sql);
if ($res->num_rows > 0) {
$result = "Exist";
}
return $result;
}
