Online PHP editor | refs for XL2A1

<?php $MAP = [ ['x', 'x', 'x', 'x'], ['x', 's', 'p', 'x'], ['x', 'p', 'p', 'x'], ['x', 'p', 'p', 'x'], ['x', 'p', 'p', 'x'], ['x', 'p', 'p', 'x'], ['x', 'x', 'x', 'x'], ]; $iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($MAP)); foreach($iterator as $key => $value) { var_dump($key.' => '.$value); }