Online PHP editor | refs for eTUa2

<?php $decurrying = function ($arg = null, $acc = '') use (&$decurrying) { return $arg === null ? $acc : function ($arg = null, $acc = '') use (&$decurrying) { return $decurrying($arg, $acc . $arg); }; }; $result = $decurrying(1)(3)(3)(8)(); var_dump($result);