3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $number = 4; $hexString = dechex($number); $result = str_pad($hexString,6,"0",STR_PAD_LEFT); echo($result);
based on Ol6HN
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
000004