<?php function reverse($str) { $ret = ''; for ($i = mb_strlen($str)-1; $i >= 0; $i--) { $ret .= mb_substr($str, $i, 1); } return $ret; } function oddList($x) { return implode(', ', range(1, $x, 2)); } echo reverse('abc');
You have javascript disabled. You will not be able to edit any code.