Question

我正在php表中显示来自数据库（dataTable）的一堆数据。表格标题为

Serial| Date | Voltage | Current | Select

每行都有一个选择按钮，如果用户按下一个选择按钮（假设该按钮对应于序列号10，则接下来的10个值（序列号10到20）将用于平均电流和电压计算。

如果该值令人满意，则用户可以按发送按钮。我想将用于计算的10个值（所有数据，如串行，电压和电流）发送到另一个数据库表（calcData）。

我管理了数据显示，选择和平均计算。如何发送此数据？我应该将数据保存在php数组中，然后发送该数组吗？有什么建议吗？

include ("DBconnect.php");
   $conn= mysqli_connect( $dbhost, $dbuser, $dbpass, $db );
   if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
   }
   $sql = "SELECT Voltage, Current, Date From DataTable' ORDER BY Date DESC";
   $result = $conn->query($sql);
   $i=1;
   if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
    echo "<form action = '' method =get >";

       echo '<tr>';
       echo"<td>" . $i. "</td>";
       echo"<td>" . $row["Date"]. "</td>";
       echo"<td>". $row["Voltage"] . "</td>";
       echo"<td>". $row["Current"]. "</td>";
   // I will use the time value of the row the corresponding to the row where user pressed the select button to select next 10 values for avg calculation.

       echo "<td>".'<input type="hidden" name="Time" value="' . $row["Date"] . '" />'."</td>";
       echo "<td>".'<input type=submit name=serial value=select id=button1 class = classSubmit />'."</td>";
       echo '</tr>';
       $i++;
   echo "</form>";
  }
  echo "</table>";
} else { echo "0 results"; echo "<br>";}
  $conn->close();

平均计算

if(isset ($_GET['serial']){
        $selectedTime =$_GET['Time'];
        $conn= mysqli_connect( $dbhost, $dbuser, $dbpass, $db );
        if ($conn->connect_error) {
         die("Connection failed: " . $conn->connect_error);
        }
        $sql = "SELECT Date, Voltage, Current  dataTable WHERE Date <= '$selectedTime' ORDER BY Date DESC Limit 10";

        $result_10_values = $conn->query($sql);
        $i=1;
        $avgCurrent=0;
        $avgVoltage=0;

        //code to select 10 values
        if ($result_10_values->num_rows > 0) {
         while($row = $result_10_values->fetch_assoc()) {
           $avg1Current += $row["Current"];
           $avgVoltage += $row["Voltage"];

           $i++;
        }
      $conn->close();
      } else { echo "0 results"; }
}
//how to save these 10 rows data and send to another table when user press send button

从一个数据库表中收集一堆数据，并将其用于计算并将其插入到另一个表中

0 个答案: