How can a TreeMenu-like functionality be implemented in PHP to allow users to view summarized data for a week by clicking on a specific element?

To implement a TreeMenu-like functionality in PHP to allow users to view summarized data for a week by clicking on a specific element, you can create a hierarchical structure of the data using arrays. Each element in the TreeMenu can represent a day of the week, and when a user clicks on a specific element, the corresponding data for that day can be displayed. You can use PHP to dynamically generate the TreeMenu and display the summarized data based on the user's selection.

<?php
// Sample data for each day of the week
$data = [
    'Monday' => 'Data for Monday',
    'Tuesday' => 'Data for Tuesday',
    'Wednesday' => 'Data for Wednesday',
    'Thursday' => 'Data for Thursday',
    'Friday' => 'Data for Friday',
    'Saturday' => 'Data for Saturday',
    'Sunday' => 'Data for Sunday'
];

// Display TreeMenu
echo '<ul>';
foreach ($data as $day => $summary) {
    echo '<li><a href="?day=' . $day . '">' . $day . '</a></li>';
}
echo '</ul>';

// Display summarized data based on user selection
if (isset($_GET['day']) && array_key_exists($_GET['day'], $data)) {
    echo '<h3>' . $_GET['day'] . '</h3>';
    echo '<p>' . $data[$_GET['day']] . '</p>';
}
?>