无刷新点击实现加载更多数据

html代码

<div class="row row-zmo">
                <div class="col-xs-12 col-md-12 row-more">
                        <a href="javascript:;" onclick="lmore()">
                            <p>
                                + 展开更多案例 +
                            </p>
                        </a>
                    </div>
            </div>      

jquery代码

var cid = "<?php echo $cid?>";
i = 2;  //当前页数
var domain = window.location.host; //域名
var url_dom = "http://"+domain+"/index.php?g=portal&m=list&a=more";
function lmore() {
      $.getJSON(url_dom, {page: i,cid: cid}, function(json) {
          if (json) {
              var str = "";
              $.each(json, function(index, array) {
                var id = array["tid"];
                var cid = array["term_id"];
                var im = array["thumb"];
                var url = window.location.pathname ; // 路径

                var full = url+"?g=&m=article&a=index&id="+id+"&cid="+cid;  //完整的详情路径
                var str = "";
                var str = str + "<div class="col-xs-12 col-md-6 case-bos">" +"<a href=""+ full +"" class="thumbnail case-thumbnail">" + "<div class="inner"></div>" + "<div class="ibar">" + "<e>" + array["post_title"] + "</e><br><e>" + array["claname"] + "</e></div>" + "<img src="/data/upload/"+ array["thumb"] +"" />" + "<div class="col-xs-3 col-md-3 case-but"><p>" + "查看案例" + "</p></div></a></div>";
                  $(".lists-img").append(str);
                  $(".case-bos").hover(
                      function(){
                          id=$(this).index();
                          $(".inner").eq(id).fadeIn(200);
                      },
                      function(){   
                         $(".inner").eq(id).fadeOut(200);
                      }
                   );　
              });
          } else {
              showEmpty();
          }
      });
      i++; 
}
function showEmpty() {
    $(".row-more").find("p").text("别滚动了,已经到底了... ...");
}

php代码

public function more(){
		$page = intval($_GET["page"]);  //获取请求的页数 
		$cid = intval($_GET["cid"]);  //分类id
		$pagenum = 8; //每页数量
		$start = ($page - 1) * $pagenum;
		$tag = "order:post_date desc;limit:$start,$pagenum";
		$result = sp_sql_posts_bycatid($cid,$tag);

		foreach ($result as &$value) {

			$value["smeta"]=json_decode($value["smeta"], true);
			$value["thumb"]=$value["smeta"]["thumb"];
			$term_id=$value["term_id"];
			$term=sp_get_term($term_id);
			$value["claname"]=$term["name"];

		}
		if ($result) {
			echo json_encode($result,true);  //转换为json数据输出 
		}
	}