How to interrupt a PHP DELETE with a confirm

PHP
1

The following code starts deleting entries after a user presses the Delete button:

if (isset($_POST['action']) and $_POST['action'] == 'Delete')
{
    try
    {
        $sql = 'SELECT id FROM joke WHERE authorid = :id';
        $s = $pdo->prepare($sql);
        $s->bindValue(':id', $_POST['id']);
        $s->execute(); // -> means to call a method (a function stored in an object)
    } 
    catch (PDOException $e) 
    {
        $error = 'Error getting list of jokes to delete.';
        include 'error.html.php';
        exit();
    }

How do I insert a way to momentarily prevent this code from executing to show a warning notice with an option to cancel, but continue the code if they choose that option? I’m confused because I can do it with JavaScript and HTML, but not this way.

It seems to me that I would insert a JavaScript function so that when the Delete button is clicked, a Confirm popop is seen. In the confirmation button, <?php code is inserted for the deletion page ?> So the deletion is not delayed, but started after the confirm. But then somehow the form contents has to carry through the JavaScript to the next page.

2

You could post the values of the first form to hidden fields in a new Confirm form then delete when that form is posted.

3

Thank you!