wp-router.php

<?php
/**
 * Serve Wordpress locally without having to configure a web server.
 *
 * You need to have the database served as configured in wp-config.php, then
 * run php -S 0.0.0.0:8080 wp-router.php to serve, and access localhost:8080 or
 * your.computers.ip:8080 in a browser.
 *
 * Make sure in the database that within the `wp_options` table, the `siteurl`
 * and `home` values are both "/".
 */
// Work from the server's document root directory.
$rootDir = $_SERVER["DOCUMENT_ROOT"];
chdir($rootDir);

// Extract path component of incoming request.
$urlComponents = parse_url($_SERVER["REQUEST_URI"]);
$requestedPath = "/" . trim($urlComponents["path"], "/");

// Allow child scripts to use current directory as include path.
set_include_path(implode(":", [
	get_include_path(),
	__DIR__
]));

$diskPath = rtrim("$rootDir/$requestedPath", "/");

if(file_exists($diskPath)) {
	if(is_dir($diskPath) && $requestedPath === "/") {
		$requestedPath = rtrim($requestedPath, "/") . "/index.php";
	}
	if(strstr($requestedPath, ".php")) {
		$diskPath = rtrim("$rootDir/$requestedPath", "/");
		require_once($diskPath);
	}
	else {
		return false;
	}
}
else {
	require_once("index.php");
}

Hi past Greg! Working with a Wordpress thing again today - psh!