3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = sprintf('%2d', -4501 % 100); var_dump($a);
based on MsdpO
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
string(2) "-1"