3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d1 = Datetime::createFromFormat("Y-m-d", "2017-07-29"); $tmp = clone $d1; var_dump($tmp->format('D')); $d2 = Datetime::createFromFormat("Y-m-d", "2017-07-31"); $d2->modify('+1 day'); var_dump($d2);

preferences:
36.58 ms | 402 KiB | 5 Q