How can buttons be used to dynamically change the displayed month in a PHP calendar?

To dynamically change the displayed month in a PHP calendar using buttons, you can create two buttons for navigating to the previous and next months. These buttons can send a request to the server with the desired month and year parameters, which will then be used to update the calendar display accordingly.

<?php
// Get the current month and year
$month = isset($_GET['month']) ? $_GET['month'] : date('n');
$year = isset($_GET['year']) ? $_GET['year'] : date('Y');

// Previous month button
echo "<a href='?month=" . ($month == 1 ? 12 : $month - 1) . "&year=" . ($month == 1 ? $year - 1 : $year) . "'>Previous Month</a>";

// Next month button
echo "<a href='?month=" . ($month == 12 ? 1 : $month + 1) . "&year=" . ($month == 12 ? $year + 1 : $year) . "'>Next Month</a>";

// Display the calendar for the selected month and year
// Your calendar display code here
?>