How can PHP be used to dynamically control the appearance of menu items based on user input?

To dynamically control the appearance of menu items based on user input in PHP, you can use conditional statements to check the user input and display the menu items accordingly. For example, you can use an if statement to show or hide menu items based on a specific condition set by the user.

<?php
$userInput = "admin"; // User input can be obtained from a form or session variable

if($userInput == "admin") {
    echo "<a href='#'>Admin Panel</a>";
}

// Other menu items can be added with their respective conditions
?>