- var_dump: documentation ( source)
<?php
$date = new DateTime('2014-06-30T18:00:00.000+02:00');
$current = new DateTime('2014-01-01T18:00:00.000+02:00');
$diff = $current->diff($date);
$interval = new DateInterval('PT15M');
var_dump($diff);
var_dump($diff > $interval);
$result = $diff > $interval;
var_dump($result);