- var_dump: documentation ( source)
<?php
$expected = new DateTimeImmutable('2015-08-31 01:02:04.456790');
var_dump($expected);
$start = new DateTimeImmutable('2015-08-31 01:02:03.456789');
var_dump($start);
$date = $start->modify('+1000001 microseconds');
var_dump($date);
var_dump($expected == $date);
var_dump($expected < $date);
var_dump($expected > $date);