public static function getInstance()
{
if (!isset(self::$_instance)) {
self::$_instance = new Group_Manager();
}
return self::$_instance;
}
<?php
require 'includes/src/core/config.inc.php';
// ensure current user is logged in:
include UTILITIES . 'authenticate_user.inc.php';
$page_title = 'Remove A User from A Group';
include HEADER;
include UTILITIES . 'brand_img.inc.php';
// Logged in user:
$user = new User();
// Group Manager:
$group_manager = Group_Manager::getInstance();
if (isset($_GET['user']) && !empty($_GET['user']) && isset($_GET['group']) && !empty($_GET['group'])) {
// Trim user input:
$trimmed_input = array_map('trim', $_GET);
// User being removed:
$user_to_remove = new User($trimmed_input['user']);
// Check user being removed exists:
if (!$user_to_remove->exists()) {
echo '<center><p>User doesn\'t exist</p></center>';
include FOOTER;
exit;
}
// Group to remove user from:
$group = new Group($trimmed_input['group']);
// Check group exists:
if (!$group->exists()) {
echo '<center><p>Group doesn\'t exist</p></center>';
include FOOTER;
exit;
}
