我从表中获取某列的总和,查询是正确的,但是当我试图在表中显示它打印零时。以下是我的DAO不显示从数据库返回的值
public function getTotal_paid($id)
{
$dbHandler = new dbConfig();
$query="select SUM(payed) from itemsale where custId = $id";
$results = $dbHandler->Query($query);
return $results;
} // End-Function
以下是我的逻辑
public function getTotal_paid($id)
{
$objDAO = new itemsaleDAO();
$results = $objDAO->getTotal_paid($id);
return $results;
} // End-Function
这是我的前端页面
<table cellpadding="0" cellspacing="0" border="1" align="right">
<tr><th style="height:10px" class="heading_text">Total Paid</th><th style="height:10px width:10px" class="heading_text">Total Remaining</th></tr>
<?
include_once($commonLocation.'Logic/itemSaleLogic.php');
$var= new itemSale();
$object= new itemSaleLogic();
$object1= array();
$object1[0]= new stdClass;
$object1[0]->custId = $_GET['id'];
$var->payed=$object->getTotal_paid($object1[0]);
//$var->remaining=$object->getTotal_rem(6);
echo $var->payed;
echo "<tr><td class=\"inner_text\">".$var->payed."</td>";
//echo "<td class=\"inner_text\">".$var->remaining."</td></tr>";
?>
</table>
对象$ VAR->所许的显示为零(忽略的支付拼写)
老兄,你不能有2个功能与同名(getTotal_paid) – Tom 2012-02-05 19:27:58
@Tom - 如果他们在单独的类中,他们可能是这样,否则PHP会抛出解析错误。 – nickb 2012-02-05 19:29:05
你是否在课堂上生活第二功能?无法理解你如何接近你的例子。你知道你已经在你的前端页面硬编码为6作为一个ID? – Nick 2012-02-05 19:30:07