3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $nums = [ '5551234', '8045551234', '18045551234', '0018045551234', ]; foreach ($nums as $num) { echo substr($num, -10); echo ' '; echo substr($num, 0, -10); echo PHP_EOL; }
based on oMue1
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0alpha1
5551234 8045551234 8045551234 1 8045551234 001