Question

我在获取某些单元格的apprpriate值时遇到问题....在第一页中我得到了相应的结果..但在下一页中，产品信息，总价格和订单利润的值所有值都为0，但所有其他字段都包含正确的信息。

每页显示五条记录..代码如下：

    <?include"dbconnect.php"?>
session_start();
?>
    <?include "adminhead.php"?>
    <?include "adminleftnav.php"?>
<div id="seasonal">
    <table width="635" border="0" align="left"  bgcolor="#CCCCCC" >
        <tr>
            <td>
                <table width="635" border="0" align="left"  >
                    <tr>
                        <td width="52" bgcolor="#E0EBED">Order Number</td>
                        <td width="150" bgcolor="#E0EBED">Product Information</td>
                        <td width="100" bgcolor="#E0EBED">Total Price(TK)</td>
                        <td width="90" bgcolor="#E0EBED">Order Date</td>
                        <td width="80" bgcolor="#E0EBED">Payment Status</td>
                        <td width="100" bgcolor="#E0EBED">Profit from order(TK)</td>
                    </tr>
                </table>
            </td>
        </tr>

              <?php
    if (isset($_GET["page"])) { $page  = $_GET["page"]; } else { $page=1; };
    $start_from = ($page-1)*5 ;
    $sql = "Select distinct order_no,date,payment_status from product_order_info order by order_no ASC LIMIT $start_from,5";
    $query_for_order1 = mysql_query ($sql);
    ?>
        <tr>
            <td>
                <table id="foo" border="1" bgcolor="#f4eddb"   cellspacing="2"  cellborder="2" width=635>




                    <?  while($row_for_my_order1=mysql_fetch_assoc($query_for_order1))
                    {
                      ?>
                    <tr>
                        <td width=52>
                      <?echo $row_for_my_order1['order_no'];?>
                        </td>
                        <td width=156>

                      <?
                       $sql1 = "Select * from product_order_info  where order_no= '$row_for_my_order1[order_no]' order by order_no ASC LIMIT $start_from,5";

                        $query_for_order = mysql_query($sql1);

                         while($row_for_my_order=mysql_fetch_assoc($query_for_order))

                         {
                             $query_for_product_details=mysql_query("select * from  product where product_no='$row_for_my_order[product_id]' ");
                             $row_for_product_details=mysql_fetch_array($query_for_product_details);
                           ?>
                            <br>
                          <?echo $row_for_product_details['product_name'];
                          ?>
                            <br>
                            Quantity
                          <?echo $row_for_my_order['quantity'];
                          }
                          ?>
                        </td>
                        <td width=106>
                          <?
                          $total=0;
                          $sql1 = "Select * from product_order_info  where order_no= '$row_for_my_order1[order_no]' order by order_no ASC LIMIT $start_from,5";

                        $query_for_order = mysql_query($sql1);



                          while($row_for_my_order2=mysql_fetch_assoc($query_for_order))
                            {
                             $query_for_product_details=mysql_query("select * from  product where product_no='$row_for_my_order2[product_id]' ");
                             $row_for_product_details=mysql_fetch_array($query_for_product_details);

                            $total = $total+ $row_for_product_details['sell_price'] * $row_for_my_order2['quantity'];

                             }
                          echo $total;
                      ?>
                        </td>
                        <td width=90>

                     <?echo $row_for_my_order1['date'];?>
                        </td>
                        <td>
                       <?echo $row_for_my_order1['payment_status'];?>
                        </td>
                        <td width=100>
                       <?  $total=0;
                       $sql1 = "Select * from product_order_info  where order_no= '$row_for_my_order1[order_no]' order by order_no ASC LIMIT $start_from,5";

                        $query_for_order = mysql_query($sql1);


                    while($row_for_my_order3=mysql_fetch_assoc($query_for_order))
                    {

                     $total=$total+$row_for_my_order3['profit'];
                     }

                     echo $total; ?>
                        </td>
                    </tr>
                 <?
                 }
                 ?>
                </table>
</div>

    <?php
    $sql = "SELECT DISTINCT COUNT(order_no) FROM product_order_info";
    $rs_result = mysql_query($sql);
    $row = mysql_fetch_row($rs_result);
    $total_records = $row[0];
    $total_pages = ceil($total_records / 5);

    for ($i=1; $i<=$total_pages; $i++) {
                echo "<a href='view_order.php?page=".$i."'>".$i."</a> ";
    };
    ?>
    <?include "footer1.php"?>

请帮助我......

Answer 1

除了第一个查询之外，您应该从每个查询中删除LIMIT $start_from,5。正如Dagon指出的那样，您应该考虑使用单个查询的可能性，以减少对SQL服务器的查询次数。

php在多个页面中拆分记录无法正常工作

1 个答案: