How can one ensure that a PHP-based countdown continues to run dynamically after loading in a browser window?

To ensure that a PHP-based countdown continues to run dynamically after loading in a browser window, you can use JavaScript to update the countdown timer on the client-side without refreshing the page. This can be achieved by sending AJAX requests to a PHP script that calculates the remaining time and returns it to the client. The client-side JavaScript code can then update the countdown timer based on the response from the server. 

<?php
// PHP script to calculate remaining time
$target_date = strtotime("2023-01-01 00:00:00");
$current_date = time();
$remaining_time = $target_date - $current_date;

echo $remaining_time;
?>

Keywords

PHP countdown dynamic browser window setInterval

Related Questions