handle whatsapp chat

footer.php

@@ -171,7 +171,7 @@
                                 </li>
                                 <li class="nav-item">
                                     <a class=""
-                                        href="https://api.whatsapp.com/send?phone=<?php echo get_field('gb_mobile_number', 'option') ?>"
+                                        href="https://api.whatsapp.com/send?phone=<?php echo get_field('gb_mobile_number', 'option'); ?>"
                                         target="_blank"><svg width="25" height="25" viewBox="0 0 25 25" fill="none"
                                             xmlns="http://www.w3.org/2000/svg">
                                             <g opacity="0.5" clip-path="url(#clip0_1314_12720)">
@@ -340,8 +340,12 @@
             <polyline points="18 15 12 9 6 15"></polyline>
         </svg>
     </a>
+    <?php 
+    $whatsapp_chat = get_field('whats_app_number', 'option')?:'';
+    if(isset($whatsapp_chat) && !empty($whatsapp_chat)) :  
+    ?>
     <div class="whats-app-icon-wrapper position-relative">
-        <a href="https://wa.me/<?php echo get_field('whats_app_number', 'option'); ?>" target="_blank">
+        <a href="https://wa.me/<?php echo $whatsapp_chat; ?>" target="_blank">
             <svg width="60" height="60" viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg">
                 <path
                     d="M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z"
@@ -355,6 +359,7 @@
             <p>Chat with us</p>
         </div>
     </div>
+    <?php endif;?>
 </div>
 
 <div class="download-popup">