<?php
function url_parts($local, $global)
{
	global $boardurl;

	// Parse the URL with PHP to make life easier.

	$parsed_url = parse_url($boardurl);

	// Is local cookies off?

	if (empty($parsed_url['path']) || !$local) $parsed_url['path'] = '';

	// Globalize cookies across domains (filter out IP-addresses)?

	if ($global && preg_match('~^\d{1,3}(\.\d{1,3}){3}$~', $parsed_url['host']) == 0 &&
		preg_match('~(?:[^\.]+\.)?([^\.]{2,}\..+)\z~i', $parsed_url['host'], $parts) ==
		1) $parsed_url['host'] = '.' . $parts[1];

	// We shouldn't use a host at all if both options are off.

	elseif (!$local && !$global) $parsed_url['host'] = '';

	// The host also shouldn't be set if there aren't any dots in it.

	elseif (!isset($parsed_url['host']) || strpos($parsed_url['host'], '.') === false)
			$parsed_url['host'] = '';

	return array($parsed_url['host'], $parsed_url['path'] . '/');
}