php - 在 PHP 中连续删除记录

Question

我试图删除数据库中的一条记录。所以基本上我创建了一个包含我所有记录的表。现在我需要做的是当我点击“DELETE”链接时它会删除记录选择的行。

这是它的样子:

基本上我这里有 3 页。
1. 页面.php
2. 添加.php
3. 删除.php

这是我的 page.php 文件:

<table border="1">
    <thead>
        <th>email</th>
        <th>date</th>
        <th>delete</th>
    </thead>

    <tbody>
        <tr>
        <?php 
            foreach($emails as $mail){ ?>
            <td><?php echo $mail['email']; ?></td>
            <td><?php echo $mail['date']; ?></td>
            <td><?php echo "<a href='delete.php?id=". $mail['id']. "'>DELETE</a>"; ?></td>
        </tr>
            <?php } ?>


    </tbody>
</table>

这是我的 add.php 文件:

<?php
    require("new-connection.php");

    session_start();

    $email = $_POST['email'];
    if(empty($_POST['email']) AND (filter_var($email, FILTER_VALIDATE_EMAIL) === false))
     {
          $_SESSION['message'] = "email cannot be blank";
     }else{
        $query = "INSERT INTO email_tbl (email, date)
              VALUES('$email', NOW())";       

    $insertEmail = run_mysql_query($query);


    if(run_mysql_query($query))
    {
        $_SESSION['message'] .= "New RECORD has been added correctly!";
    }
    else
    {
        $_SESSION['message'] .= "Failed to add new Interest"; 
    }

    }


    header('Location: email.php');




?>

到目前为止，这是我的 delete.php 文件:

<?php
    require("new-connection.php");

    session_start();


    $query = "DELETE FROM email_tbl
            WHERE id={id} LIMIT 1";       

    $deleteEmail = run_mysql_query($query);


    if(run_mysql_query($query))
    {
        $_SESSION['message'] .= "RECORD has been DELETED correctly!";
    }
    else
    {
        $_SESSION['message'] .= "Failed to DELETE RECORD"; 
    }



    header('Location: email.php');




?>

所以现在当我点击删除链接时，它必须实时删除按钮。任何想法？

Answer 1

修改您的 delete.php 以检索 url 参数:

<?php
    require("new-connection.php");
    session_start();

    $id = $_GET['id'];

    $query = "DELETE FROM email_tbl
            WHERE id='$id' LIMIT 1";       

    $deleteEmail = run_mysql_query($query);


    if($deleteEmail)
    {
        $_SESSION['message'] .= "RECORD has been DELETED correctly!";
    }
    else
    {
        $_SESSION['message'] .= "Failed to DELETE RECORD"; 
    }

    header('Location: email.php');
?>

至于你的add.php，你正在使用这个:

$insertEmail = run_mysql_query($query);

    if(run_mysql_query($query))

你应该把它改成这样:

$insertEmail = run_mysql_query($query);


    if($insertEmail)

您现在正在做的是通过两次调用 run_mysql_query 来执行查询两次。这应该可以解决它