删除特定的会话变量

Question

I save some session variables in my website by a form submit. With this form the customer can add multiple dimensions to his product. for Each submit the website displays the chosen dimensions. So there a sometimes multiple configurations visible.

The customer must be able to remove such configuration (thus a part of the SESSION).

With this piece of code I save the Configurations in the SESSION:

if(isset($_POST['wz_submit_saving_1'])) :

    $straight_saving = array(
        'wz_str_saving' => $_POST['wz_str_saving'],
        'wz_saving_a' => $_POST['wz_saving_a'],
        'wz_saving_b' => $_POST['wz_saving_b'],
        'wz_submit_saving_1' => $_POST['wz_submit_saving_1']
    );

    $_SESSION['straight_saving'][] = $straight_saving;

endif;

I show them and each configuration has a delete link:

<a class="remove_link" href="http://www.myurl.com/?wz_submit_saving_remove_1">Verwijder sparing</a>

With the following code I remove the session.

if(isset($_GET['wz_submit_saving_remove_1'])) :

    unset($_SESSION['straight_saving']);

endif;  

But when I do this, all the Configurations in the SESSION $straight_saving; are gone. So I only need to delete the configuration out of the session on which remove button I click and not all of them.

Can someone tell me if I'm doing it the right way with the GET link or do I need to do something else?

Thanks!

Answer 1

After our chat it was more clear:

You want to unset every saving you add accordingly after pushing it in your session:

foreach($_SESSION['straight_saving'] as $key => $saving) {
//You can create a link that says ?saving=$key
}

Than you can unset the right session after by doing unset($_SESSION['straight_saving'][$_GET['saving']]. Don't forget to put some checks in it that saves people from putting anything in the URL.