- mktime: documentation ( source)
- date: documentation ( source)
<?php
$time = 0;
$composed_date = mktime($time, 0, 0, date("m"), date("d") - 0, date("Y"));
echo $composed_date . PHP_EOL;
$time = 5;
$composed_date = mktime($time, 0, 0, date("m"), date("d") - 2, date("Y"));
echo $composed_date;