- date: documentation ( source)
- strtotime: documentation ( source)
<?php
$date_set = date("Y-m-d", strtotime('101-12-2024'));
$date_now = date("d-m-Y"); // this format is string comparable
if ($date_set > '20-12-2024') {
echo 'greater than';
}else{
echo 'Less than';
}