[英]How can I alert user, before redirect
I have a function where I get all information in my users. 我有一个可以在用户中获取所有信息的功能。 At the end of the string, I give the admin the option to delete the user, based on the users id. 在字符串的末尾,我给admin提供了基于用户ID删除用户的选项。
My string: 我的字符串:
while ( $row = $result->fetch_assoc () ) {
$string .= "<tr><td>" . $row ['id'] . "</td><td>" . $row ['first_name'] . "</td><td>" . $row ['last_name'] . "</td><td>" . $row ['email'] . "</td><td>" . $row ['role_name'] . "</td><td>[<a href='delete.php?id=" . $row ['id'] . "'>Delete</a>]</td></tr>";
}
My delete page: 我的删除页面:
if ($user->deleteUser($_GET['id']))
{
header("Location: admin.php");
}
else
{
echo "Could not delete the user!";
}
And my delete user function: 和我的删除用户功能:
public function deleteUser($id)
{
$sql = "DELETE FROM users WHERE id = ?";
if (!$result = $this->db->mysqli->prepare($sql))
{
return false;
}
if (!$result->bind_param('i', $id))
{
return false;
}
return $result->execute();
}
And all of this works fine. 所有这些都很好。
What I wan't to know, is how can I promt admin with an alert, saying: "Are you sure?" 我不知道的是,我该如何警告管理员,说:“您确定吗?” for example. 例如。
使用confirm
js函数:
<a href="delete.php?id=.." onclick="return confirm('are you sure?')">
You can use javascript on click with your links. 您可以在点击链接时使用javascript。 for example change 例如改变
<a href='delete.php?id=".$row['id']"'>Delete</a>
to 至
<a href='delete.php?id=".$row['id']."' onclick='return confirm(\'are you sure?\')'>Delete</a>
this will call a javascript confirm box before you're taken to the link. 在进入该链接之前,这将调用一个javascript确认框。
It's simple. 这很简单。 Add the following code to your javascript. 将以下代码添加到您的javascript中。
<a href='delete.php?id=" . $row ['id'] . "'onclick="deletPost()">Delete</a>
//Javascript
<script>
function deletePost() {
var ask = window.confirm("Are you sure you want to delete this post?");
if (ask) {
//Do something if approved.
}
}</script>
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