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我有一个搜索表单,用户可以在其中搜索指定价格范围内的产品。其中我有 2 个输入框 1 用于起始范围,另一个用于结束范围。

我的数据库表中有 3 个产品商店。与价格2300.00001200.00001000.5000分别。

我在输入的价格范围内选择值时遇到问题。问题是,当我输入像

  1. 100开始范围到1100结束范围。带有1200.00001000.5000正在显示的产品,而不仅仅是1000.5000 产品。
  2. 0开始范围到1100结束范围或1000.50结束范围。带有1200.00001000.5000正在显示的产品,而不仅仅是1000.5000产品。
  3. 1100起始范围。仅显示带有 的产品,2300.0000而不是同时显示2300.00001200.0000。但是当起始值小于或等于时,500所有 3 个产品都将被显示。

这是我正在使用的代码。

function db_prepare_input($string)
{
    if (is_string($string)) {
        return trim(stripslashes($string));
    } elseif (is_array($string)) {
        reset($string);
        while (list($key, $value) = each($string)) {
            $string[$key] = db_prepare_input($value);
        }
        return mysql_real_escape_string($string);
    } else {
        return mysql_real_escape_string($string);
    }
}

$pricefrom_key = db_prepare_input(number_format($_GET['pricefrom'], 4, '.', ''));
$priceto_key = db_prepare_input(number_format($_GET['priceto'], 4, '.', ''));

// Price Range
if (!empty($_GET['pricefrom']) && !empty($_GET['priceto'])) {
    $price_range = " having price >= ".$pricefrom_key." and price <= ".$priceto_key;
}
elseif(empty($_GET['pricefrom']) && !empty($_GET['priceto']))
{
    $price_range = " having price >= 0 and price <= ".$priceto_key;
}

elseif(!empty($_GET['pricefrom']) && empty($_GET['priceto']))
{
    $price_range = " having price >= ".$pricefrom_key;
}

elseif(!empty($_GET['pricefrom']) && !empty($_GET['priceto']))
{
    $price_range = "";
}

$catglobal_sql = "select p.blog_id, p.global_category_id, p.products_id, p.products_currency, p.products_type, p.products_name, p.products_description, p.products_quantity, p.products_model, p.products_image, p.products_price, p.products_date_added, p.products_last_modified, p.products_date_available, p.products_weight, p.products_status, p.products_tax_class_id, p.manufacturers_id, p.products_ordered, p.specials_new_products_price, p.specials_date_added, p.specials_last_modified, p.expires_date, p.date_status_change, p.status, p.display_product, case when (p.specials_new_products_price > 0 or p.specials_new_products_price != 0000-00-00 and p.expires_date > Now() and p.status != 0) then p.specials_new_products_price else p.products_price end price from ".TABLE_GLOBAL_PRODUCTS." p INNER JOIN ".TABLE_STORES." s ON s.blog_id = p.blog_id where MATCH (p.products_name,p.products_description) AGAINST ('%".$search_key."%') OR p.products_name like '%".$search_key."%' and s.countries_id = '168' ".$search_cat." and p.display_product = '1' and p.products_status = '1' ".$price_range." order by p.products_date_added DESC, p.products_name";

我试过,添加die($catglobal_sql);,结果是,

select p.blog_id, p.global_category_id, p.products_id, p.products_currency, p.products_type, p.products_name, p.products_description, p.products_quantity, p.products_model, p.products_image, p.products_price, p.products_date_added, p.products_last_modified, p.products_date_available, p.products_weight, p.products_status, p.products_tax_class_id, p.manufacturers_id, p.products_ordered, p.specials_new_products_price, p.specials_date_added, p.specials_last_modified, p.expires_date, p.date_status_change, p.status, p.display_product, case when (p.specials_new_products_price > 0 or p.specials_new_products_price != 0000-00-00 and p.expires_date > Now() and p.status != 0) then p.specials_new_products_price else p.products_price end price from wp_global_products_table p INNER JOIN wp_blogs s ON s.blog_id = p.blog_id where MATCH (p.products_name,p.products_description) AGAINST ('%cotton%') OR p.products_name like '%cotton%' and s.countries_id = '168' and p.products_currency = 'php' and p.display_product = '1' and p.products_status = '1' and p.products_type = 'a' having price >= 0 and price <= 1200.0000 order by p.products_date_added DESC, p.products_name

好像有什么问题??

4

2 回答 2

0

我找到了问题..它在案例中..我已将其修改为case when p.specials_new_products_price >= 0.0000 and p.expires_date > Now() and p.status != 0 then p.specials_new_products_price else p.products_price end price

于 2012-06-20T04:24:30.297 回答
-1

你到底在用这条线做什么..

$price_range = " having price >= ".$pricefrom_key." and price <= ".$priceto_key;

你不应该只设置 $price_range 即:

if (!empty($_GET['pricefrom']) && !empty($_GET['priceto']))

{

      if($price_range >= $pricefrom_key && $price_range <= $priceto_key)
      {
      echo "you are in the pricerange from" .$pricefrom_key." to ".$priceto_key;
      } 
//etc......
}

编辑:由于有些人没有得到我的回答,这只是为了指出正确的方向。无论我们使用“echo”语句还是SQL查询,都需要正确指定范围。该声明:

$price_range = " having price >= ".$pricefrom_key." and price <= ".$priceto_key;

..几乎说:价格范围=一些文字。数字 。一些文字。编号 < = > 运算符在“”中,表示 TEXT,它们将被忽略。我希望这是有道理的。

于 2012-06-20T02:24:04.830 回答