How can PHP variables be properly utilized to create a dynamic date service for inclusion on multiple websites?

To create a dynamic date service for inclusion on multiple websites using PHP variables, you can define a variable that holds the current date and time. This variable can then be included in the websites where the date service is needed, ensuring that the displayed date is always up to date.

<?php
$currentDate = date("Y-m-d H:i:s");
echo "Current date and time: " . $currentDate;
?>