Online PHP editor | refs for cpHgp

<?php ini_set('error_reporting', -1); ini_set('display_errors', 'on'); class Foo { private static $a = []; public function __construct() { for($i=0; $i < 100; $i++) { self::$a = self::$a + range('A', 'Z'); } } public function generator() { foreach (self::$a as $i) { yield $i; } self::$a = []; } } $foo = new Foo; $generator = $foo->generator(); if ($generator->valid()) { foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; } $generator = $foo->generator(); if ($generator->valid()) { foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; }