how to append my click result in ajax success?

how to append my click result in ajax success?

i  made simple like code that can any user inside the chat room can make like for public message
  1. <?php

  4.   // Set the header to accept JSON

  6.   // Insert your database connection here (should probably use mysqli)
  7.   $host     =  "localhost"; // or IP or whatever
  8.   $db_user  =  "root";
  9.   $db_pass  =  "xx";
  10.   $db_name  =  "x";
  11.   mysql_connect($servername, $db_user, $db_pass) or mysql_error();
  12.   mysql_select_db($db_name) or db_name();

  14.   // Grab user id from post data
  15. if (isset($_POST['likeid'])){
  16.   // Write the query
  17.     $sql_select = mysql_query("SELECT likes FROM chat WHERE likes > 1");
  18. $sql_update = "UPDATE chat SET likes = likes +1 WHERE post_id = '" . (int)$_POST['likeid'] . "'";
  20.    $_SESSION["likeid"]= $_POST["likeid"];

  22.     echo "Yes, Like Sent";    
  23. } else {    
  24.     echo "N0, Like is not set";

  26.   // Encode a JSON response if the query is successful
  27.  }
  28.   if(mysql_query($sql_update)){

  30.     echo("Success");

  32.   }
  33.  // this is the php variables to show the like container for each message
  35. $likedom ="<input type='hidden' name='likeid' value='" . (int)$chat['post_id'] . "' />
  36. <div class=\"container\">
  37. <button class=\"like-button\" value=\"" . $chat['post_id'] . "\"> <i class=\"fa fa-gratipay fa-2x like-icon\"></i><like name=\"showlike\" id=\"counter\">" . $chat['likes'] . "</like></button>
  38. </div>";
  39. ?> 
and my ajax code
  1.  $(document).on('click', '.like-button', function(){
  2. var id=$(this).val();
  3. var $this = $(this);
  4. $.ajax({
  5. type: "POST",
  6. url: "likes.php",
  7. data: {
  8. likeid: id,
  9. increment: true,
  10. like: 1,
  11. },
  12. success: function(data){
  13. console.log(data);

  15. }
  16. });

  18. });
Everything is working fine..just i have simple problem
when the user click on the like button the click count not showing 
but the click count stored in the mysql row ( working fine )
what i need to show the click +1 on the notification like this pic

Thanks