What are common pitfalls when trying to expand a dynamic menu in PHP?

One common pitfall when trying to expand a dynamic menu in PHP is not properly organizing the menu items and their corresponding links. To solve this, you can create a multidimensional array to store the menu items and their links, making it easier to dynamically generate the menu. 

$menuItems = array(
    'Home' => 'index.php',
    'About' => 'about.php',
    'Services' => array(
        'Web Design' => 'webdesign.php',
        'Graphic Design' => 'graphicdesign.php'
    ),
    'Contact' => 'contact.php'
);

// Loop through the menu items to generate the menu
echo '<ul>';
foreach($menuItems as $menuItem => $link) {
    if(is_array($link)) {
        echo '<li>' . $menuItem;
        echo '<ul>';
        foreach($link as $subMenuItem => $subLink) {
            echo '<li><a href="' . $subLink . '">' . $subMenuItem . '</a></li>';
        }
        echo '</ul>';
        echo '</li>';
    } else {
        echo '<li><a href="' . $link . '">' . $menuItem . '</a></li>';
    }
}
echo '</ul>';

Keywords

PHP dynamic menu expansion recursion array manipulation

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