php - Ajax favorite/unfavorite button -


i'm trying implement ajax on favourite/unfavourite button. idea behind when click star changes yellow , when click again, changes grey , on. adds , deletes data db.

before had this

    <?php  include("classes/event.class.php");  $m = new event(); $arrayallevents = $m->getnonfavo(); $arrayfavorites = $m->getfavo();    $db = new db();  while ($row = mysqli_fetch_assoc($arrayfavorites)) {   $unfavoriteid = $row['f_id'];   $uid = $_session['u_id']; }  if(isset($_post['favorite_row']))  {   $uid = $_session['u_id'];    $fid = $_post['id_to_be_favo'];    if(!mysqli_query($db->conn, "insert favorites (u_id, n_id, f_boolean) values         ('". $db->conn->real_escape_string($uid) ."' ,         '". $db->conn->real_escape_string($fid) ."' ,         '". $db->conn->real_escape_string("1") ."')"))    {      echo mysqli_error($db->conn);    } }  if(isset($_post['unfavorite_row']))  {   $unfid = $_post['id_to_be_unfavo'];     if(!mysqli_query($db->conn, "delete favorites f_id ='".$unfid."'"))     {       echo mysqli_error($db);     }   } ?>

and field php echo form

  <?php      echo "<form method='post'>           <input type ='hidden' name='id_to_be_favo'           value='".$a['n_id']."' />           <input type='submit' class='favoritefalse' id='favobtn' name='favorite_row' value='favorite' />           </form>            <div class='clearfix'> </div>";          ?>

i'm trying change form button , use jquery/ajax switch it. i've been trying different solutions i've found online, none of them seem work.

what best way implement this?

kind regards

<input type='button' class='favorite' id='<?php echo $a['n_id']; ?>' value='favorite' />  <div class='clearfix'> </div>";

using

$(function() {   $(".favorite").on("click".function() {     $.post("whatever.php", {"favorite_row":this.id}, function(data) {       $("#star").html('<img/>',{"src":data.fave==yes"?"true.png":"false.png"});    });  });

now return {"fave":"yes"} if favorited


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