Online PHP editor | refs for Urbp5

<?php ini_set('error_reporting', -1); ini_set('display_errors', 'on'); $a = ['a', 'b']; 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'; }