$isAdmin = isAdmin($user); if($isAdmin){ //code for admin users } else{ //code for non-admin users }
if(isAdmin($user)){ //code for admin users } else{ header('Location: login.php'); exit(); }In this example, the function `isAdmin()` is checking whether the `$user` is an admin or not. If the user is an admin, the code for admin users will be executed. Otherwise, the user will be redirected to the `login.php` page. Package/Library: It is not possible to determine the package/library from the given description and code examples as the `isAdmin()` function could be implemented in many different ways using multiple packages/libraries.