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">Related Products</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();

$flash_page_query = "select p.products_id,p.products_image,pd.products_name from " . TABLE_PRODUCTS ." p, ". TABLE_PRODUCTS_DESCRIPTION . " pd where p.`products_id`=pd.`products_id` AND pd.`language_id` = '" . (int)$_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 $i;?>" style="display:block;float:left;padding-left:10px;width:22%;">
<a href="<?php echo zen_href_link(zen_get_info_page($flash_page_items[$i]['products_id']), 'products_id=' . $flash_page_items[$i]['products_id']);?>"><?php echo 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><p style="text-align:center;"><a href="<?php echo zen_href_link(zen_get_info_page($flash_page_items[$i]['products_id']), 'products_id=' . $flash_page_items[$i]['products_id']);?>"><?php echo $flash_page_items[$i]['products_name']; ?></a><br /><strong id="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：
<?php require($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<?php require($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