PHP에서 컬렉션 기능을 구현하는 방법

<script>
    $(function(){
      $(&#39;#sc&#39;).click(function(){
          var gid=$(this).attr(&#39;data-id&#39;);
          var data={
            gid:gid
          };
          $.ajax({
            url:"{:U(&#39;Goods/collect_add&#39;)}", 
            type:"post",
            data:data,
            success:function(data){
              // window.clearInterval(timer);
                            if(data==1){
                                window.location.href="{:U(&#39;Public/login&#39;)}"; //登录界面
                            }else {
                                if(data==2){
                                    $(&#39;#sc&#39;).css({
                                        &#39;background-color&#39;:&#39;white&#39;,
                                        &#39;color&#39;:&#39;#00ccff&#39;,
                                    });
                                    $(&#39;#sc_words&#39;).html(
                                        &#39;收藏&#39;
                                    );
                                }else if(data==3){
                                    $(&#39;#sc&#39;).css({
                                        &#39;background-color&#39;:&#39;#00ccff&#39;,
                                        &#39;color&#39;:&#39;white&#39;,
                                    });
                                    $(&#39;#sc_words&#39;).html(
                                        &#39;已收藏&#39;
                                    );
                                }else{
                                    alert(data);
                                }
                            }
            },
            error:function(){
              alert(&#39;請求失敗&#39;);
            }
          });
      });
    })
</script>

      <div id="sc" data-id="{$detail.id}" class="in_right">
        <p id="sc_words">收藏</p>
      </div>