- date: documentation ( source)
- strtotime: documentation ( source)
<?php
$currentDate = strtotime("01/30/2014 - 00:00:00");
$futureDate = $currentDate+(60*5);
$formatDate = date("m/d/Y - H:i:s", ($currentDate+(60*5)));
echo date( "Y-m-d", strtotime( "01/30/2014 - 00:00:00 +1 month" ) );
?>