<?php
/**
 * This file generates a map from windows timezones to tz database timezones
 *
 * @author   Clement Wong <cw@clement.hk>
 * @license  http://www.opensource.org/licenses/mit-license.php  MIT License
 */
$windows_timezones = array();
$windowstimezonexml = new DOMDocument();
$windowstimezonexml->load('http://unicode.org/cldr/data/common/supplemental/windowsZones.xml');
$zones = $windowstimezonexml->getElementsByTagName('mapZone');
foreach($zones as $zone) {
	if($zone->getAttribute('territory') == '001') {
		$windows_timezones[$zone->getAttribute('other')] = $zone->getAttribute('type');
	}
}

file_put_contents(__DIR__.'/windows_timezones.php', "<?php\n\$windows_timezones = ".var_export($windows_timezones, true).';');