/*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;

}

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<!-- {if $category_related_random_goods} -->

 <div class="box">

        <h3>Related Products</h3>

        <div>

        <ul>

        <!--{foreach from=$category_related_random_goods item=category_related_random_goods_data}-->

        <li class="li1" style="float:left; margin-bottom:20px;"><a href="{$category_related_random_goods_data.url}"><img src="{$category_related_random_goods_data.goods_thumb}" alt="{$category_related_random_goods_data.goods_name}"/></a></li>

        <li class="li2" style="float:left; margin-bottom:20px;"><a href="{$category_related_random_goods_data.url}" title="{$category_related_random_goods_data.goods_name}">{$category_related_random_goods_data.short_name}</a><br />

        <!-- {if $category_related_random_goods_data.promote_price neq 0} -->

        {$lang.promote_price}<font class="f1">{$category_related_random_goods_data.formated_promote_price}</font>

        <!-- {else} -->

        {$lang.shop_price}<font class="f1">{$category_related_random_goods_data.shop_price}</font>

        <!-- {/if} --></li>

        <!--{/foreach}-->

        </ul>

        </div>

 </div>

<div class="blank5"></div>

<!-- {/if} -->

 

 

3，找到  /themes/你使用的模板/goods.dwt 
文件

在适当的位置加上

<!-- #BeginLibraryItem
"/library/category_related_random_goods.lbi"
--><!-- #EndLibraryItem
-->

一般加在 <!-- #BeginLibraryItem "/library/goods_tags.lbi"
--><!-- #EndLibraryItem
-->

 

下面或者上面，和其他模块是同理的

 

PS: googs.php 里 ORDER BY rand() limit 12   这个代码 12 就是显示个数的

 

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转载：http://www.cnblogs.com/wangblognet/archive/2012/12/17/2821773.html