电商----货品组合（详情页展示）

数据处理成为一下格式：

Array
([goods_id] => 1[goods_name] => 三星(SAMSUNG) W2016双卡双待 4G手机 尊贵金 4G标配版[attr] => Array([70] => Array([attr_name] => 颜色[attr_value] => Array([0] => Array([attr_value] => 土豪金[goods_attr_id] => 3)[3] => Array([attr_value] => 金属黑[goods_attr_id] => 6)))[72] => Array([attr_name] => 选择版本[attr_value] => Array([1] => Array([attr_value] => 双网通[goods_attr_id] => 4)[2] => Array([attr_value] => 全网通[goods_attr_id] => 5)))))

public function product(){header('content-type:text/html;charset=utf-8');$id= Request::instance()->get('id');$pro = Db::table('goods')->alias('a')->where(['a.goods_id'=>$id])->join('goods_attr b','a.goods_id = b.goods_id')->join('attribute c','b.attr_id = c.attr_id')->select();$arr=[];foreach($pro as $key => $val){static $i=0;$arr['goods_id'] 		= $val['goods_id'];$arr['goods_name']		= $val['goods_name'];$arr['attr'][$val['attr_id']]['attr_name'] = $val['attr_name'];$arr['attr'][$val['attr_id']]['attr_value'][$i]['attr_value']	= $val['attr_value'];$arr['attr'][$val['attr_id']]['attr_value'][$i]['goods_attr_id']	= $val['goods_attr_id'];$i++;}print_r($arr);die;$this->assign('arr',$arr);return view('product');}

{volist name="arr['attr']" id="arr"}{/volist}
商品名称
{$arr['goods_name']}
商品价格
520
{$arr['attr_name']}
{volist name="arr['attr_value']" id="val"}{$val['goods_attr_id']}{$val['attr_value']}{/volist}

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