3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new DateTime('2000-01-01'); $b = new DateTime('2010-01-01'); $diff = date_diff($a, $b); echo '$a=', $a->format('Y-m-d H:i:s'), "\n"; echo '$b=', $b->format('Y-m-d H:i:s'), "\n"; var_dump($diff);

preferences:
35.7 ms | 402 KiB | 5 Q