3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php ini_set('error_reporting', -1); ini_set('display_errors', 'on'); $a = []; function generator() { global $a; foreach($a as $i){ yield $i; } $a = []; } $generator = generator(); if ($generator->valid()) { foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; }
based on XDgo7
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
Nothing