3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'hola '; $append = function ($carry, $append) { return $carry .= $append; }; echo $append($a, 'Nico') . PHP_EOL;
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.2.6
hola Nico