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run code in 200+ php & hhvm versions
Bugs & Features
<?php ini_set('error_reporting', -1); ini_set('display_errors', 'on'); function generator() { $a = []; if(empty($a)){ return null; } foreach($a as $i){ yield $i; } } if ($generator = generator()) { echo gettype($generator); foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; }
based on VUF2P
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
object