JS <script type="text/javascript">    //定义全局变量，用于计算分页    var more_i = 1;    $(‘#showmore‘).click(function() {        $.ajax({            type    : ‘get‘,            url     : ‘__URL__/ajax_more‘,            data    : {                ‘evalue_id‘     : {$evalue_info.evalue_id},                ‘num‘           : more_i,            },            dataType: ‘json‘,            success : function(res) {                if(res == 0){                    alert(‘没有更多数据了‘);                }else {                    $(‘#prev_more‘).before(res[‘info‘]);                    more_i = res[‘num‘] + 1;                }            },        });    });</script>

PHP，采用tp框架/*        AJAX加载更多    */    public function ajax_more() {
//实例化模型        $doctor_evalue_reply        = M(‘doctor_evalue_reply‘);
//获取ajax传值过来的数据        $evalue_id                     = $this->_get(‘evalue_id‘,‘intval‘);        $num                         = $this->_get(‘num‘,‘intval‘);
//计算分页        $start                         = $num * 5;//获取数据        $condition[‘evalue_id‘]        = $evalue_id;        $reply_info                    = $doctor_evalue_reply                                                          ->field(‘reply_id,user_name,content,add_time‘)                                                          ->where($condition)                                                          ->limit($start . ‘,5‘)                                                          ->order(‘add_time desc‘)                                                          ->select();        if($reply_info === null) {            $res                     = 0;        }else {
//服务器端将num数字++，传回客户端js调用。            $res[‘num‘]                    = $num++;            //将数据拼装为html，            foreach ($reply_info as $key => $value) {                $temp  = $start + $key + 1;                $html .= ‘<tr class="‘.$vlaue[‘reply_id‘].‘">‘;                $html .= ‘<td><input name="id[]" value="http://www.mamicode.com/‘.$value[‘reply_id‘].‘" type="checkbox"/></td>‘;                $html .= ‘<td>‘.$temp.‘</td>‘;                $html .= ‘<td>‘.$value[‘user_name‘].‘</td>‘;                $html .= ‘<td title="‘.$value[‘content‘].‘">‘.mb_substr($value[‘content‘],0,35,‘UTF-8‘).‘...</td>‘;                $html .= ‘<td>‘.date(‘Y-m-d H:i:s‘,$value[‘add_time‘]).‘</td>‘;                $html .= ‘<td><input type="button" value="http://www.mamicode.com/删除" class="button" onClick="if (confirm(\‘你确定删除该医生吗?\‘)) del(‘.$value[‘reply_id‘].‘);" /></td>‘;                $html .= ‘</tr>‘;            }            $res[‘info‘]                = $html;        }
//json形式返回        echo json_encode($res);    }