zencart价格筛选插件

1.首先，新建文件includes\modules\sideboxes\price_range.php

<?php
function zen_count_products_in_price($pfrom, $pto)
{
    global $db;
    if ((int)$pfrom >= 1) {
        $products_query = "select count(*) as total
        from " . TABLE_PRODUCTS . " p, " . TABLE_PRODUCTS_TO_CATEGORIES . " p2c
        where p.products_id = p2c.products_id
        and p.products_price > " . $pfrom;
        if ($pto != '∞')
        {
            $products_query .= " and p.products_price <= ".$pto;
        }
        //echo $products_query . '<br />';
        $products = $db->Execute($products_query);
        $products_count = $products->fields['total'];
    }
    return (int)$products_count;
}

$price_array = array();
$price_array[] = array('pfrom'=>1,'pto'=>300,'counts'=>zen_count_products_in_price(1,300));
$price_array[] = array('pfrom'=>301,'pto'=>500,'counts'=>zen_count_products_in_price(301,500));
$price_array[] = array('pfrom'=>501,'pto'=>1000,'counts'=>zen_count_products_in_price(501,1000));
$price_array[] = array('pfrom'=>1001,'pto'=>2000,'counts'=>zen_count_products_in_price(1001,2000));
$price_array[] = array('pfrom'=>2001,'pto'=>3000,'counts'=>zen_count_products_in_price(2001,3000));
$price_array[] = array('pfrom'=>3001,'pto'=>4000,'counts'=>zen_count_products_in_price(3001,4000));
$price_array[] = array('pfrom'=>4001,'pto'=>5000,'counts'=>zen_count_products_in_price(4001,5000));
$price_array[] = array('pfrom'=>5001,'pto'=>'∞','counts'=>zen_count_products_in_price(5001,'all'));
$content = '';
$This_cPath = $cPath;
$content .= '<div id="' . str_replace('_', '-', $box_id . 'Content') . '" class="sideBoxContent">' . "\n";
$content .= '<ul>';
$price_array_count = count($price_array);
for($rr=0;$rr<$price_array_count;$rr++)
{
    $content .= '<li><a';
    if($price_array[$rr]['pfrom']==$_GET['pfrom'] and $price_array[$rr]['pto']==$_GET['pto'])
    {
        $content .= ' class="pricecurrent"';
    }
    $content .= ' href="index.php?main_page=advanced_search_result&search_in_description=1';
    if($_GET['categories_id'])
    {
        echo '&categories_id='.$This_cPath;
    }
    $content .= '&inc_subcat=1&pfrom='.$price_array[$rr]['pfrom'].'&pto='.$price_array[$rr]['pto'].'" rel="nofollow">'.$price_array[$rr]['pfrom'];
    if(!empty($price_array[$rr]['pto']))
    {
        $content .= ' - '.$price_array[$rr]['pto'].$GLOBALS['currencies']->currencies[$_SESSION['currency']]['symbol_left'];
    }else{
        $content .= '&nbsp;Up to...';
    }
    $content .= '</a><span>('.$price_array[$rr]['counts'].')</span></li>';
}
$content .= '</ul>';
$content .= '</div>';

$title =  'Price Range';
require($template->get_template_dir($column_box_default, DIR_WS_TEMPLATE, $current_page_base,'common') . '/' . $column_box_default);
?>

2.用css代码美化前台显示

#pricerange a{
padding-left:15px;
line-height:27px;
font-size:12px;
color:#666;
background:url("../images/pricea.gif") no-repeat scroll 0 2px transparent;
}
#pricerange a:hover, #pricerange a.pricecurrent {
color:#0075e2;
text-decoration:none;
background:url("../images/priceahover.gif") no-repeat scroll 0 2px transparent;
}
#pricerange ul, #pricerange ul li{
padding:;
margin:;
}
#pricerange ul li {
    border-bottom: 1px dashed #ccc;
    line-height: 23px;
    list-style-type: none;
    text-indent: 12px;
    font-size:12px;
}
#pricerange ul li span {
    color: #999999;
    display: inline;
    font: 10px Arial;
    padding-left:2px;
}

附：css样式图片

3.后台开启边框价格筛选插件。