我只希望页面刷新一次

Question

I am making an admin page where I can delete users but when I delete a user I have to refresh the page.

I used header refresh but that refreshed my page multiple times, I want my page refreshed only once.

can you guys help me out?

 <?php $dbcon= mysqli_connect("localhost","root",""); mysqli_select_db($dbcon,"register") or die(mysqli_connect_error($dbcon)); $query ="SELECT * FROM users"; $run = mysqli_query($dbcon,$query); while ($row= mysqli_fetch_array($run)){ $user_id = $row[0]; $user_name = $row[1]; $user_pass = $row[2]; $user_mail = $row[3]; ?> <tr align="center"> <td><?php echo $user_id ?></td> <td><?php echo $user_name ?></td> <td><?php echo $user_pass ?></td> <td><?php echo $user_mail ?></td> <td><a href="delete.php?del=<?php echo $user_id;?>"><button onclick="myFunction()">Verdwijder</button></a></td> </tr> <?php } ?> 

Answer 1

您可以使用1）位置reload（）2）window.location.href

Answer 2

First of all, you should make two PHP functions. One for displaying the user list and one for deleting users. Both with different URLs.

Then, consder the following flow:

1. User goes to the user list page
2. User clicks on delete button, which calls DELETE action (delete URL).
3. Delete action deletes record and sends the redirect header back to the user list action .
4. User is redirected back to user list action, where the whole loop may repeat itself.

If anything goes wrong in the user deletion function, you have two choices. Either the delete action can show the user list with the additional message. Or - much better - it can redirect back to the user list action, but with additional parameter (saved in session, encoded in URL, a cookie etc). This parameter is checked always in user list action and, if present, the appropriate status message is shown. To prevent the status message being displayed twice, you can delete the parameter (cookie, session, etc) just after you read it in user list action (so-called flash messages).

As a general rule, it is good to separate actions displaying UI to user with actions actually doing something (deleting the records, inserting new ones etc). This way you have much more control of the process flow. All decent frameworks allow this approach (eg. in Symfony you can create controller function for GET request on some URL, and another for POST or DELETE request on same URL).

Also, as stated in my comment below your question, you should definitely consider using templating framework to further separate view from logic. Twig and Smarty are choices worth consideration (i vote for Twig).

Answer 3

You can use this code i hope it will help.

if($queryfired){
echo '<script>alert("Record Deleted:")</script>';
echo '<script>window.location.href="somepage.php";</script>';
}