like and dislike counter wordpress no plugin php and mysql

<script>
    $(document).ready(function() {
        var pageID = <?php echo $pageID;  ?>;

        $('.like-btn').click(function(){
            $('.dislike-btn').removeClass('dislike-h');   
            $(this).addClass('like-h');
            $.ajax({
                type:"POST",
                url:"ajax.php",
                data:'act=like&pageID='+pageID,
                success: function(data){
                    $('#cartop'+pageID).html(data);
                }
            });
        });
        $('.dislike-btn').click(function(){
            $('.like-btn').removeClass('like-h');
            $(this).addClass('dislike-h');
            $.ajax({
                type:"POST",
                url:"ajax.php",
                data:'act=dislike&pageID='+pageID,
                success: function(data){
                    $('#cartop'+pageID).html(data);
                }
            });
        });
        $('.share-btn').click(function(){
            $('.share-cnt').toggle();
        });
    });
</script>Copy