How can dynamic menu generation based on user types be implemented efficiently in PHP?

Dynamic menu generation based on user types can be efficiently implemented in PHP by creating an array of menu items with associated user types, checking the current user type, and then generating the menu based on the user's type. This can be done by looping through the menu items array and displaying only the items that are applicable to the current user type.

$userType = 'admin'; // Example user type
$menuItems = [
    ['label' => 'Home', 'url' => '/home', 'userTypes' => ['admin', 'user']],
    ['label' => 'Profile', 'url' => '/profile', 'userTypes' => ['admin', 'user']],
    ['label' => 'Admin Panel', 'url' => '/admin', 'userTypes' => ['admin']],
    ['label' => 'Logout', 'url' => '/logout', 'userTypes' => ['admin', 'user']],
];

echo '<ul>';
foreach ($menuItems as $item) {
    if (in_array($userType, $item['userTypes'])) {
        echo '<li><a href="' . $item['url'] . '">' . $item['label'] . '</a></li>';
    }
}
echo '</ul>';