route.php

<?php
/**
 * Part of CodeIgniter Composer Installer
 *
 * @author     Kenji Suzuki <https://github.com/kenjis>
 * @license    MIT License
 * @copyright  2015 Kenji Suzuki
 * @link       https://github.com/kenjis/codeigniter-composer-installer
 */
/**
 * Router script for PHP built-in server
 */
// See https://bugs.php.net/bug.php?id=67808
$_SERVER = array_merge($_SERVER, $_ENV);
$file = $_SERVER[DOCUMENT_ROOT] . $_SERVER[SCRIPT_NAME];
echo $file, PHP_EOL;
if (is_file($file)) {
    return false;
}
$_SERVER[SCRIPT_NAME] = /index.php;
$_SERVER[SCRIPT_FILENAME] = $_SERVER[DOCUMENT_ROOT] . /index.php;
//echo $_SERVER[SCRIPT_FILENAME], PHP_EOL;
chdir($_SERVER[DOCUMENT_ROOT]);
require $_SERVER[SCRIPT_FILENAME];