3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $o=''; $b=''; for($i=0;$i<=5000;$i++){ $o.=sprintf('%s',$i); $b.="$i"; }
based on n1bQE
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0