3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $svctk_ym = ""; $svctk_d = 2; echo sprintf('%04s%02d', $svctk_ym, $svctk_d);
based on f8qYr
Output for 4.3.0 - 7.1.10
000002