显示MySQL表数据的逻辑错误

时间：2015-03-19 07:22:37

标签： php mysql arrays

我在我的电子商务应用程序中有一项名为商店信用（预付款）的功能，其中客户可以在他的帐户中兑换商店信用。

到此为止，一切正常。

我想要的是我想在客户的“我的帐户明细”中显示这样的数据：

SC_OC      S_OC    SC_Amount    SC_Alloted    SC_Used    SC_Balance

ORD-0001    --        1000          1100          0          1100
  --      ORD-0001     --            --         300           800

SC_OC = Store_Credit_Order_Code

S_OC = Store_Order_Code

每当客户购买商店信用时，如果SC_Alloted不是0，则商店信用将通过添加来更新商店信用。所以它会是这样的：

SC_OC      S_OC    SC_Amount    SC_Alloted  SC_Curent    SC_Used    SC_Balance

ORD-0001    --        1000        1100        1100          0          1100
  --      ORD-0001     --          --         1100        300           800
ORD-0002    --        2500        2800        3600          0          3600

S_OC和SC_Used数据来自orders表，其余详细信息来自store_credits_orders表。

我得到的是：

SC_OC      S_OC    SC_Amount    SC_Alloted  SC_Curent    SC_Used    SC_Balance

ORD-0001  ORD-0001    1000        1100        1100          0          1100
ORD-0001  ORD-0001    1000        1100        1100        300           800
ORD-0002  ORD-0001    2500        2800        3600          0          3600

这是我尝试过的PHP代码：

<?php
$table = '';
$queryToGetStoreCredit = "SELECT * FROM
                            store_credits_orders sco,
                            orders ord
                                WHERE
                                    sco.SCO_CustEmailAdd = '".$_SESSION["Customer"]["email"]."'
                                        AND
                                    ord.CustEmailAdd = '".$_SESSION["Customer"]["email"]."'
                                        AND
                                    ord.CustEmailAdd = sco.SCO_CustEmailAdd";
$validate->Query($queryToGetStoreCredit);
if ($validate->NumRows() >= 1) {
    while ($rows_sco = $validate->FetchAllDatas()) {
        $i = 0;
        $table .= '<tr>';
        $table .= '<td>'.$rows_sco["SCO_OrderCode"].'</td>';
        $table .= '<td>'.$rows_sco["OrderCode"].'</td>';
        $table .= '<td>'.$rows_sco["SCO_OrderDate"].'</td>';
        $table .= '<td>'.$rows_sco["SCO_Purchase_Amount"].'</td>';
        $table .= '<td>'.$rows_sco["SCO_Credit_Alloted"].'</td>';
        $table .= '<td>'.$rows_sco["AppliedCredits"].'</td>';
        $table .= '<td>'.$rows_sco["SCO_Credit_Alloted"].'</td>';
        $table .= '</tr>';

    }
}
?>

我如何实现这一目标？

非常感谢任何帮助。

更新1：

在RST的回答之后，我得到以下输出：

SC_OC      S_OC    SC_Amount    SC_Alloted  SC_Curent    SC_Used    SC_Balance

ORD-0001    --       1000          1100        1100          0          1100
ORD-0001    --       1000          1100        1100        300           800
ORD-0002    --       2500          2800        3600          0          3600

更新2：

我以某种方式试图获得所需的输出。但是我不能得到超过1个结果，这意味着，如果store_credits_orders中有超过1个订单，我只获得第一个结果而不是其他结果。这是代码：

<?php
$queryToGetStoreCredit = "SELECT * FROM store_credits_orders WHERE SCO_CustEmailAdd = '".$_SESSION["Customer"]["email"]."'";
$validate->Query($queryToGetStoreCredit);
if ($validate->NumRows() >= 1) {
    while ($rows_sco = $validate->FetchAllDatas()) {
        $used = $i = 0;
        $table .= '<tr>';
        $table .= '<td>'.$rows_sco["SCO_OrderCode"].'</td>';
        $table .= '<td>--</td>';
        $table .= '<td>'.$rows_sco["SCO_OrderDate"].'</td>';
        $table .= '<td>'.$rows_sco["SCO_Purchase_Amount"].'</td>';
        $table .= '<td>'.$rows_sco["SCO_Credit_Alloted"].'</td>';
        $table .= '<td>'.$used.'</td>';
        $table .= '<td>'.( $rows_sco["SCO_Credit_Alloted"] - $used ).'</td>';
        $table .= '</tr>';

        $queryToGetOrder = "SELECT * FROM orders WHERE CustEmailAdd = '".$rows_sco["SCO_CustEmailAdd"]."'";
        $validate->Query($queryToGetOrder);
        while ($row = $validate->FetchAllDatas()) {
            $table .= '<tr>';
            $table .= '<td>--</td>';
            $table .= '<td>'.$row["OrderCode"].'</td>';
            $table .= '<td>--</td>';
            $table .= '<td>--</td>';
            $table .= '<td>--</td>';
            $table .= '<td>'.$row["AppliedCredits"].'</td>';
            $table .= '<td>'.($rows_sco["SCO_Credit_Alloted"] - $row["AppliedCredits"]).'</td>';
            $table .= '</tr>';
        }
    }
}
?>

更新3：

在RST评论后，使用print_r()上的$rows_sco，我得到以下数组结果：

Array
(
    [SCO_Id] => 1
    [SCO_OrderCode] => ORD-000001
    [SCO_CustEmailAdd] => harishmdesai@yahoo.com
    [SCO_Purchase_Amount] => 1
    [SCO_Credit_Alloted] => 100
    [SCO_OrderDate] => 2015-03-19 16:45:19
    [SCO_OrderIP] => 115.97.1.132
    [OrderId] => 1
    [OrderCode] => ORD-000001
    [CustEmailAdd] => harishmdesai@yahoo.com
    [CustDelAddId] => 1
    [ProdCode] => PK-0002-0004
    [Quantity] => 1
    [PaytMethod] => 2
    [ShippingCharges] => 1
    [TaxedAmount] => 1
    [AppliedCredits] => 10
    [PayableAmount] => 2
    [OrderDate] => 2015-03-19 16:53:46
    [OrderModified] => 0000-00-00 00:00:00
    [OrderStatus] => In Process
    [OrderIPAddress] => 115.97.1.132
)
Array
(
    [SCO_Id] => 2
    [SCO_OrderCode] => ORD-000002
    [SCO_CustEmailAdd] => harishmdesai@yahoo.com
    [SCO_Purchase_Amount] => 1
    [SCO_Credit_Alloted] => 100
    [SCO_OrderDate] => 2015-03-19 17:01:25
    [SCO_OrderIP] => 115.97.1.132
    [OrderId] => 1
    [OrderCode] => ORD-000001
    [CustEmailAdd] => harishmdesai@yahoo.com
    [CustDelAddId] => 1
    [ProdCode] => PK-0002-0004
    [Quantity] => 1
    [PaytMethod] => 2
    [ShippingCharges] => 1
    [TaxedAmount] => 1
    [AppliedCredits] => 10
    [PayableAmount] => 2
    [OrderDate] => 2015-03-19 16:53:46
    [OrderModified] => 0000-00-00 00:00:00
    [OrderStatus] => In Process
    [OrderIPAddress] => 115.97.1.132
)
Array
(
    [SCO_Id] => 1
    [SCO_OrderCode] => ORD-000001
    [SCO_CustEmailAdd] => harishmdesai@yahoo.com
    [SCO_Purchase_Amount] => 1
    [SCO_Credit_Alloted] => 100
    [SCO_OrderDate] => 2015-03-19 16:45:19
    [SCO_OrderIP] => 115.97.1.132
    [OrderId] => 2
    [OrderCode] => ORD-000002
    [CustEmailAdd] => harishmdesai@yahoo.com
    [CustDelAddId] => 2
    [ProdCode] => PK-0002-0004
    [Quantity] => 1
    [PaytMethod] => 2
    [ShippingCharges] => 1
    [TaxedAmount] => 1
    [AppliedCredits] => 0
    [PayableAmount] => 12
    [OrderDate] => 2015-03-20 09:30:02
    [OrderModified] => 0000-00-00 00:00:00
    [OrderStatus] => In Process
    [OrderIPAddress] => 115.97.1.132
)
Array
(
    [SCO_Id] => 2
    [SCO_OrderCode] => ORD-000002
    [SCO_CustEmailAdd] => harishmdesai@yahoo.com
    [SCO_Purchase_Amount] => 1
    [SCO_Credit_Alloted] => 100
    [SCO_OrderDate] => 2015-03-19 17:01:25
    [SCO_OrderIP] => 115.97.1.132
    [OrderId] => 2
    [OrderCode] => ORD-000002
    [CustEmailAdd] => harishmdesai@yahoo.com
    [CustDelAddId] => 2
    [ProdCode] => PK-0002-0004
    [Quantity] => 1
    [PaytMethod] => 2
    [ShippingCharges] => 1
    [TaxedAmount] => 1
    [AppliedCredits] => 0
    [PayableAmount] => 12
    [OrderDate] => 2015-03-20 09:30:02
    [OrderModified] => 0000-00-00 00:00:00
    [OrderStatus] => In Process
    [OrderIPAddress] => 115.97.1.132
)

P.S。：所有值都来自数据库。

1 个答案:

答案 0 :(得分：1)

在显示rowdata之前，请检查SC_Used。

的值

如果为0，则将S_OC的值设置为“ - ”

如果不是0，则设置SC_OC，SC_Amount，SC_Alloted的值为' - '

然后显示行

代码：

while ($rows_sco = $validate->FetchAllDatas()) {
    $i = 0;
    if ( 0 == $rows_sco["AppliedCredits"]) {
      $rows_sco["OrderCode"] = '--';
    } else {
      $rows_sco["SCO_OrderCode"] = '--';
      $rows_sco["SCO_Purchase_Amount"] = '--';
      $rows_sco["SCO_Credit_Alloted"] = '--';
    }
    $table .= '<tr>';
    $table .= '<td>'.$rows_sco["SCO_OrderCode"].'</td>';
    $table .= '<td>'.$rows_sco["OrderCode"].'</td>';
    $table .= '<td>'.$rows_sco["SCO_OrderDate"].'</td>';
    $table .= '<td>'.$rows_sco["SCO_Purchase_Amount"].'</td>';
    $table .= '<td>'.$rows_sco["SCO_Credit_Alloted"].'</td>';
    $table .= '<td>'.$rows_sco["AppliedCredits"].'</td>';
    $table .= '<td>'.$rows_sco["SCO_Credit_Alloted"].'</td>';
    $table .= '</tr>';

}

你可能需要用'0'替换0

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