- var_dump: documentation ( source)
- usleep: documentation ( source)
<?php
$begin = (new DateTimeImmutable())->modify('-5 days');
usleep(30);
//var_dump($begin->getTimestamp());
$end = new DateTimeImmutable();
//var_dump($begin);
//var_dump($end);
$diff = $begin->diff($end);
//var_dump($diff);
var_dump($diff->format('%f'));