javascript - 如何在点击链接后在另一个页面上制作确认框，工作吗？

Question

美好的一天!

我想问一件事。我在索引文件中有一个名为“删除”的链接。现在，我想在执行删除操作之前向用户确认。但是，我想将确认脚本放入删除文件中。我尝试了多种方法，但都没用。但其实是可以删除的，我的问题就是，确认框没有提示。这里有点存货。请帮忙。

这是我在index.php的代码(删除链接):

`<p><strong>Country: </strong> <?php echo $country['countries'];?> &nbsp | 
&nbsp <a href="editcountry.php?id=<?php echo $country['id']; ?>">Edit</a> | 
<a href="deletecountry.php?id=<?php echo $country['id']; ?>" 
class="confirmation">Delete</a></p>`

这是我的delete.php 文件:

`<?php
require 'dbconnect.php';
$id = $_GET['id']; ?>

<script>
    function confirmationDelete(){
    var conf = confirm('Are you sure want to delete this record?');
        if(conf==true){
            <?php
                $sql = "DELETE countries FROM countries WHERE id=$id";
                if (mysqli_query($connect, $sql)) { ?>
                    alert("Record Deleted!");
                <?php }
                else { ?>
                    alert("Error Deleting Record!");
                <?php } ?>
        }
   return conf;
    }
</script>`

Answer 1

在

<a href="deletecountry.php?id=1" onclick="return confirm('Are you sure you want to delete this record?')" class="confirmation">Delete</a>

然后在你的deletecountry.php中

<?php
session_start();
require 'dbconnect.php';
$id = $_GET['id']; ?>
$sql = "DELETE countries FROM countries WHERE id=$id";
if (mysqli_query($connect, $sql)) {
    $_SESSION['msg'] = 'Successfully Deleted';
}
else {
    $_SESSION['msg'] = 'Error Deleting';
}
// redirect to somewhereelse.php

然后在你的somewhereelse.php

<?php
session_start();
if(isset($_SESSION['msg']))
{
    echo '<script>alert("'. $_SESSION['msg'] .'")</script>';
    session_unset('msg');
}
?>