function getListings($email, $firstname, $lastname)
{
$con = mysqli_connect("***.***.***","name","password","DB");
$qu = $con->prepare('SELECT email, password, skills, firstName, lastName, address, apt, city, state, zip, country, phone, hourly_rate, bio, profile_pic, proposal FROM users WHERE username=? LIMIT 1');
$qu-> bind_param('s', $username);
$qu->execute();
$qu->bind_result($email, $password, $skills, $firstname, $lastname, $address, $apt, $city, $state, $zip, $country, $phone, $hourlyrate, $bio, $pic, $proposal);
$qu->fetch();
$qu->close();
}

getListings($firstname, $lastname, $email);

             <div class="sidehead">
                  <strong>
                    <?php
                    echo ($firstname . " ");
                    echo $lastname;
                    ?>
                      </strong>
                    </div>

                <div class="sideheademail sidehide">
                   <?php echo ($email . " "); ?>
                </div>