PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

722 Chapter 30 Building a Mailing List Manager
Figure 30.10
The administrator menu allows for mailing list creation and
maintenance.
Creating a New List
If the administrator chooses to set up a new list by clicking on the Create List button,
she will activate the create-list action, which is associated with the following code:
case 'create-list':
display_list_form(get_email());
break;
The display_list_form() function, found in the output_fns.php library, displays a
form that enables the administrator to enter the details of a new list. It just outputs HTML,
so we did not include it here.The output of this function is shown in Figure 30.11.
When the administrator clicks on the Save List button, this activates the store-list
action, which triggers the following code in index.php:
case 'store-list':
if(store_list($_SESSION['admin_user'], $_POST)) {
echo "New list added.";
display_items('All Lists', get_all_lists(), 'information',
'show-archive','');
} else {