3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $g = function($iter) { $isSubgenerator = $iter instanceof Generator; $received = null; $send = true; while ($iter->valid()) { if ($isSubgenerator) { $next = $send ? $iter->send($received) : $iter->throw($received); } else { $next = $iter->current(); $iter->next(); } try { $received = yield $next; $send = true; } catch (Exception $e) { if ($isSubgenerator) { $received = $e; $send = false; } else { throw $e; } } } return $isSubgenerator ? $iter->getReturn() : null; }; function gen1() { yield 1; yield 2; yield 3; } $x = $g(gen1()); foreach($x as $val) { var_dump($val); }
Output for 7.0.0 - 7.2.0
int(2) int(3) NULL
Output for 5.4.1 - 5.6.28
Parse error: syntax error, unexpected '$next' (T_VARIABLE) in /in/XXmZO on line 16
Process exited with code 255.
Output for 5.3.18 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE in /in/XXmZO on line 16
Process exited with code 255.