3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $num = 1234; $first = preg_split("//", $num)[0]; var_dump($first);
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0rc2
string(0) ""