<?php class Foo { public int $bar = 42; public function &getIterator() { foreach([1, &$this->bar] as &$item) { yield $item; } } } $foo = new Foo(); foreach($foo->getIterator() as &$item) { $a = &$item; } $a = "blah"; var_dump($foo);
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Value for `_results` contains invalid data `array`