建立的資料庫:

CREATE TABLE `try_brand` (
  `id` smallint(6) NOT NULL AUTO_INCREMENT,
  `brand_name` varchar(15) CHARACTER SET utf32 NOT NULL COMMENT '品牌名稱',
  `rank` tinyint(3) unsigned NOT NULL COMMENT '排序權重',
  `deleted` tinyint(1) NOT NULL COMMENT '是否刪除：1=已刪除；0=正常',
  PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=32 DEFAULT CHARSET=utf8 COMMENT='品牌類別';
 

控制器查詢的資料庫的程式碼:

    //搜尋品牌
    public function getSearchBrand(){


        $search_brand = I('search_brand','','addslashes');
        $brands = D('BrandCategory')->getBrand($search_brand);
        //返回json
        $_back['data'] = $brands;
        $_back['result'] = 1;
        exit(json_encode($_back));
    }
 

    //模型
    public function getBrand($search_brand){
        if($search_brand) $where['brand_name'] = array('like','%'.$search_brand.'%');
        return $this->where($where)->where('deleted=0')->select();
    }

      //模板程式碼
       <select name="brand_id" id="brand_id">
            <option value="" selected="selected">-試用品牌-</option>
            <foreach name="brand" item="vo" >
                <option value="{$vo['id']}" <if condition="$activity.brand_id eq $vo['id']">selected</if>>{$vo['brand_name']}</option>
            </foreach>
        </select>


        <b>品牌搜尋：</b>
        <input type="text" name="brand_search" id="brand_search" style="width:120px;"/><button id='search_brand' style="width:60px;">搜尋</button>
        <script>
            $(function(){
                $('#search_brand').click(function(){
                    var search_brand = $("#brand_search").val();
                    $.ajax({
                        url:'__U__/Admin/Activity/getSearchBrand',
                        data:{'search_brand':search_brand},
                        success:function(data){
                            if(data.result == 1){
                                var content = data.data;
                                var html = '<option value="">-試用品牌-</option>';
                                var x;
                                for(x in content){
                                    html +='<option value='+content[x]["id"]+'>'+content[x]["brand_name"]+'</option>';
                                }
                                $('#brand_id').html(html);
                            }
                        },
                        dataType: "json"
                    });
                    return false;
                });
            });
        </script>
 

        對返回的json陣列的data項進行迴圈處理，將查詢的結果顯示在上面的下拉框中，整個過程完成了對json陣列的迴圈處理,返回顯示在頁面上