Trigger PHP function by clicking HTML link

Question

Is it possible to trigger a PHP function by just clicking a link? Or should I stick with the form submit method? If clicking the link will work, where should the link refer

Answer 1

I found this code in a plugin, they have user a foreach look to trigger the action:

$actions = unset($meta[$key]);
foreach ( $actions as $action => $value ) {
    echo '
' . '
';
}