ECSHOP商品详情页添加调用同类随机商品

通过以下教程可以实现，在ECSHOP商品详情页中调用显示同类的随机商品1，根目录下找到goods.php文件查找代码：$smarty->assign('properties',          $properties['pro']);                              // 商品属性在上面一行添加以下代码：$smarty->assign('category_related_random_goods',       category_related_random_goods($goods['cat_id'])); // 同分类随机商品接着还在goods.php文件的最低部也就是 ?>前添加以下代码：/*同分类下随机推荐商品*/function category_related_random_goods($category_id){    $where = "g.is_on_sale = 1 AND g.is_alone_sale = 1 AND ".            "g.is_delete = 0 AND g.cat_id=$category_id ";    $sql = 'SELECT g.goods_id, g.goods_name, g.goods_name_style, g.market_price, g.is_new, g.is_best, g.is_hot, g.shop_price AS org_price, ' .                "IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, g.promote_price, g.goods_type, " .                'g.promote_start_date, g.promote_end_date, g.goods_brief, g.goods_thumb , g.goods_img ' .            'FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .            'LEFT JOIN ' . $GLOBALS['ecs']->table('member_price') . ' AS mp ' .                "ON mp.goods_id = g.goods_id AND mp.user_rank = '$_SESSION[user_rank]' " .            "WHERE $where ORDER BY rand() limit 12";    $res = $GLOBALS['db']->query($sql);    $arr = array();    while ($row = $GLOBALS['db']->fetchRow($res))    {        $arr[$row['goods_id']]['goods_id']     = $row['goods_id'];        $arr[$row['goods_id']]['goods_name']   = $row['goods_name'];        $arr[$row['goods_id']]['short_name']   = $GLOBALS['_CFG']['goods_name_length'] > 0 ?            sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];        $arr[$row['goods_id']]['goods_thumb']  = get_image_path($row['goods_id'], $row['goods_thumb'], true);        $arr[$row['goods_id']]['goods_img']    = get_image_path($row['goods_id'], $row['goods_img']);        $arr[$row['goods_id']]['market_price'] = price_format($row['market_price']);        $arr[$row['goods_id']]['shop_price']   = price_format($row['shop_price']);        $arr[$row['goods_id']]['url']          = build_uri('goods', array('gid'=>$row['goods_id']), $row['goods_name']);        if ($row['promote_price'] > 0)        {            $arr[$row['goods_id']]['promote_price'] = bargain_price($row['promote_price'], $row['promote_start_date'], $row['promote_end_date']);            $arr[$row['goods_id']]['formated_promote_price'] = price_format($arr[$row['goods_id']]['promote_price']);        }        else        {            $arr[$row['goods_id']]['promote_price'] = 0;        }    }    return $arr;}2、新建模板文件 category_related_random_goods.lbi ，代码如下         

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