3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo (new \DateTimeImmutable)->format('Y_M_d_H_i_s');
based on vT96A
Output for 5.6.0 - 5.6.30, hhvm-3.18.5, hhvm-3.22.0, 7.0.0 - 7.3.0beta1
2018_Jan_16_12_51_22
Output for hhvm-3.21.3
2018_Jan_16_12_51_23