在商品详细页，随机显示一定数量的同类产品 有利于SEO

1, 创建一个新文件 随意命名 没重复就行 

例如：tpl_product_info_similar.php
复制该文件到includes/templates/你的模板/templates/目录下
打开该文件，把以下代码复制进去并保存

<div class="centerBoxWrapper" id="similar_product">
<h2 class="centerBoxHeading">RelatedProducts</h2>
<ul>
<?php

$products_id = (int)$_GET['products_id'];

   $flash_page_id_con = array();
   $flash_page_images_con = array();
   $flash_page_price_con = array();
   $flash_page_name_con = array();

   $flash_page_query = "selectp.products_id,p.products_image,pd.products_name from " .TABLE_PRODUCTS ." p, ". TABLE_PRODUCTS_DESCRIPTION . " pd wherep.`products_id`=pd.`products_id` AND pd.`language_id` = '" .(int)$_SESSION['languages_id'] . "' AND p.`master_categories_id` =" . zen_get_products_category_id($products_id) . " ORDER BY rand()limit 12";
    $flash_page= $db->Execute($flash_page_query);
   while(!$flash_page->EOF){
      $flash_page_items[] = $flash_page->fields;
      $flash_page_id_con[]   = $flash_page->fields['products_id'];
      $flash_page_images_src =is_int(strpos($flash_page->fields['products_image'],','))?substr($flash_page->fields['products_image'],0,strpos($flash_page->fields['products_image'],',')):$flash_page->fields['products_image'];
      $flash_page_images_con[]   ='"'.(zen_not_null($flash_page->fields['products_image'])? $flash_page_images_src : PRODUCTS_IMAGE_NO_IMAGE ).'"';
      $flash_page_price_con[]   ='"'.$currencies->display_price(zen_get_products_base_price($flash_page->fields['products_id']),zen_get_tax_rate($product_check->fields['products_tax_class_id'])).'"';
      $flash_page_name_con[]   ='"'.zen_output_string(zen_get_products_name($flash_page->fields['products_id'])).'"';
      $flash_page->MoveNext();
    }
   
   $flash_page_id = implode(",", $flash_page_id_con);
   $flash_page_images = implode(",", $flash_page_images_con);
   $flash_page_price = implode(",", $flash_page_price_con);
   $flash_page_name = implode(",", $flash_page_name_con);
   $flash_page_display_num   = $flash_page->RecordCount();
?>

<?php for($i = 0; $i<$flash_page_display_num ; $i++){?>
<li id="li<?php echo$i;?>"style="display:block;float:left;padding-left:10px;width:22%;">
<a href="<?php echozen_href_link(zen_get_info_page($flash_page_items[$i]['products_id']),'products_id=' .$flash_page_items[$i]['products_id']);?>"><?phpecho zen_image(DIR_WS_IMAGES .$flash_page_items[$i]['products_image'],$flash_page_items[$i]['products_name'],IMAGE_FEATURED_PRODUCTS_LISTING_WIDTH,IMAGE_FEATURED_PRODUCTS_LISTING_HEIGHT);?></a><pstyle="text-align:center;"><ahref="<?php echozen_href_link(zen_get_info_page($flash_page_items[$i]['products_id']),'products_id=' .$flash_page_items[$i]['products_id']);?>"><?phpecho $flash_page_items[$i]['products_name'];?></a><br/><strongid="cell_price<?php echo $i?>"class="red"><?php echo$currencies->display_price((zen_get_products_base_price($flash_page_items[$i]['products_id'])== 0 ?zen_get_products_sample_price($flash_page_items[$i]['products_id']):zen_get_products_base_price($flash_page_items[$i]['products_id'])),zen_get_tax_rate($product_check->fields['products_tax_class_id']));?></strong></p>
</li>
<?php
//print_r($flash_page_items[$i]);
}
?>
</ul>
</div>

2，找到includes/templates/你的模板/templates/tpl_product_info_display.php文件
在相应的位置加上以下代码：
<?phprequire($template->get_template_dir('你创建的文件tpl_product_info_similar.php',DIR_WS_TEMPLATE,$current_page_base,'templates').'/你创建的文件tpl_product_info_similar.php'); ?>

一般可以加到<?phprequire($template->get_template_dir('tpl_modules_also_purchased_products.php',DIR_WS_TEMPLATE, $current_page_base,'templates'). '/' .'tpl_modules_also_purchased_products.php');?>的上面或下面