3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // Everything you enter here will be executed by our servers. Try it! for ($i = 0; $i < 20; $i++) { echo((int) sprintf('%02d, ', $i)); }
Output for 4.3.0 - 7.1.0
012345678910111213141516171819