Question

我有一张表正在回复，现在我在它的末尾添加了一个复选框。

我想检查那个方框。可以检查多个项目，然后单击保存按钮。它将转到帖子页面并在数据库中设置完成，以便＆＃34;是＆＃34;对于所有已检查的ID。

问题是我不明白复选框在知道哪个ID进入帖子页面后会如何知道。

<?php

$conduct = $_SESSION['username'];
$query = mysqli_query($con, "SELECT * FROM newworders WHERE train = 'Yes' AND conductor = '$conduct' AND complete = ' '");

echo "<table id='tb' border='1'>
          <tr class='head'>
              <th>First Name</th>
              <th>Last Name</th>
          </tr>";

while($row = mysqli_fetch_array($query)) {
    echo "<tr>";
    echo "<td>" . '<a href="orderpage.php?uid=' . $row['ID'] . '">' . $row['first'] . '</a><br />' . "</td>";       
    echo "<td>" . '<a href="orderpage.php?uid=' . $row['ID'] . '">' . $row['last'] . '</a><br />' . "</td>";
    echo "<td>"."<input type='checkbox' value='Yes' name='complete'" . "</br>". "</td>";
}

<div class='new'>
    <form action="savepending.php" method='POST'>
        <input type='submit' name ='save'/>     
    </form>
</div>

然后是帖子页。

<?php
  if(isset($_POST['save']))
  { 
    $query = mysqli_query($con, "UPDATE newworders SET complete = 'Yes'  WHERE ")
  }
?>

我不知道在WHERE部分放什么。我只是不明白它将如何判断哪个ID是哪个。

Answer 1

使您的复选框成为arrray，由complete主键索引。然后你可以迭代package magicsquare; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Random; public class MagicSquare { /** * @param args the command line arguments */ public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.print("\n\nEnter the size of the matrix : "); int n = Integer.parseInt(br.readLine()); if (n > 5 && n < 2) { System.out.println("Enter a number between 2 to 5 "); } else { int A[][] = new int[n][n]; // Creating the Magic Matrix int i, j, k, t; /*Initializing every cell of the matrix with 0 */ for (i = 0; i < n; i++) { for (j = 0; j < n; j++) { A[i][j] = 0; } } /* When the size of the matrix is Odd */ if (n % 2 != 0) { i = 0; j = n / 2; k = 1; while (k <= n * n) { A[i][j] = k++; i--; // Making one step upward j++; // Moving one step to the right if (i < 0 && j > n - 1) // Condition for the top-right corner element { i = i + 2; j--; } if (i < 0) // Wrapping around the row if it goes out of boundary { i = n - 1; } if (j > n - 1) // Wrapping around the column if it goes out of boundary { j = 0; } if (A[i][j] > 0) // Condition when the cell is already filled { i = i + 2; j--; } } } /* When the size of the matrix is even */ else { k = 1; /* Filling the matrix with natural numbers from 1 till n*n */ for (i = 0; i < n; i++) { for (j = 0; j < n; j++) { A[i][j] = k++; } } j = n - 1; for (i = 0; i < n / 2; i++) { /* swapping corner elements of primary diagonal */ t = A[i][i]; A[i][i] = A[j][j]; A[j][j] = t; /* swapping corner elements of secondary diagonal */ t = A[i][j]; A[i][j] = A[j][i]; A[j][i] = t; j--; } } /* Printing the Magic matrix */ System.out.println("The Magic Matrix of size " + n + "x" + n + " is:"); for (i = 0; i < n; i++) { for (j = 0; j < n; j++) { //remove random element from array Random rand = new Random(); for (i = 0; i < 4 ; i++) { int randomNum1 = rand.nextInt((n-1) - 0 + 1) + 0; int randomNum2 = rand.nextInt((n-1) - 0 + 1) + 0; BufferedReader dr = new BufferedReader(new InputStreamReader(System.in)); A[randomNum1][randomNum2] = Integer.parseInt(dr.readLine()); } System.out.print(A[i][j] + "\t"); } System.out.println(); } } } }。 PHP数组是关联的，因此您只有复选框所需的元素。

echo复选框，选中时将完成设置为数据库

1 个答案: