3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $start_time = '0'; $start_time = str_pad($start_time, 4, "0", STR_PAD_LEFT); echo $start_time; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
0000