<div class="widget w-socials">
    <h6 class="title">Other Social Networks:</h6>
<?php if (!empty($facebook)) {
    echo '<a href="https://' . $facebook . '"' . " " . 'class="social-item bg-facebook"><i class="fab fa-facebook-f" aria-hidden="true"></i>Facebook</a>';
}   ?>
<?php if (!empty($twitter)) {
    echo '<a href="https://' . $twitter . '"' . " " . 'class="social-item bg-twitter"><i class="fab fa-twitter" aria-hidden="true"></i>Twitter</a>';
}   ?>
<?php if (!empty($instagram)) {
    echo '<a href="https://' . $instagram . '"' . " " . 'class="social-item bg-dribbble"><i class="fab fa-instagram" aria-hidden="true"></i>Instagram</a>';
}   ?>
</div>