<?php
$dueDate = new DateTime('2024-05-06');
$closingDate = new DateTime('2024-08-07');
$interval = $dueDate->diff($closingDate);
echo $interval->format("%r%a");
PD9waHAKCiRkdWVEYXRlID0gbmV3IERhdGVUaW1lKCcyMDI0LTA1LTA2Jyk7CiRjbG9zaW5nRGF0ZSA9IG5ldyBEYXRlVGltZSgnMjAyNC0wOC0wNycpOwoKJGludGVydmFsID0gJGR1ZURhdGUtPmRpZmYoJGNsb3NpbmdEYXRlKTsKZWNobyAkaW50ZXJ2YWwtPmZvcm1hdCgiJXIlYSIpOwo=