Online PHP editor | refs for 8ekfh

<?php class Connection { public function query() { return new Result(); } } class Result implements \IteratorAggregate { private $rows; public function __construct() { $this->rows = new \ArrayObject([ [0, 1, 2], [3, 4, 5], [6, 7, 8], ]); } public function getIterator() { return $this->rows->getIterator(); } } $conn = new Connection(); // Here $result holds an instance of "Result" // *** THIS IS YOUR CASE 2 *** $result = $conn->query(); var_dump($result); // "Result" is iterable, so we can do like this foreach($result as $row) { var_dump($row); } // Or we can skip the intermediate variable and loop over the result immediately. // *** THIS IS YOUR CASE 1 *** foreach($conn->query() as $row) { var_dump($row); }