Online PHP editor | refs for 6kceo

<?php $walk_arr = [ 0 => "A", 1 => "B", 3 => "D", 5 => "F", ]; global $stop_walk; $stop_walk = false; $walk_func = function(&$v, $k) { global $stop_walk; if ($k === 3) { $stop_walk = true; } if ($stop_walk) { return; } $v .= " changed"; }; unset($stop_walk); array_walk($walk_arr, $walk_func); print_r($walk_arr); print $stop_walk;