====== PHP RFC: IntlTimeZone::getWindowsID() ======
  * Version: 1.0
  * Date: 2016-03-15
  * Author: Sara Golemon, pollita@php.net
  * Status: Implemented
  * First Published at: https://wiki.php.net/rfc/intl.timezone.get-windows-id

===== Introduction =====
ICU adds new methods from time to time.  Specifically, the methods [[http://icu-project.org/apiref/icu4c/classicu_1_1TimeZone.html#a216766958df6b1931bb7603ae78d114e|TimeZone::getWindowsID]] and [[http://icu-project.org/apiref/icu4c/classicu_1_1TimeZone.html#a0872f72c5c3204de3c61502be568d72d|TimeZone::getIDForWindowsID]] were added with ICU4C 52.

===== Proposal =====
Add support for these two new methods as static methods on the PHP IntlTimeZone class using the following prototypes:

  class IntlTimeZone {
    /* Converts a system timezone such as "America/Los_Angeles" to a
     * Windows Timezone identifier.
    * 
     * @param string $systemID - System Timezone Identifier, such as "America/Los_Angeles"
     * @returns string - Windows Timezone Identifier, i.e. "Pacific Standard Time", or FALSE on failure
    */
    public static function getWindowsID(string $systemID): string;
    
    /* Convers a windows timezone identier such as "Pacific Time Zone" to a
     * System Timezone identifier appropriate to the region requested.
     * .
     * @param string $windowsID - Windows Timezone identifier, such as "Pacific TimeZone"
     * @param string $region - Preferred region for result, or NULL for no preference
     * @returns string - System Timezone identifier, i.e. "America/Los_Angeles", or FALSE on failure
    */
    public static function getIDForWindowsID(string $windowsID, ?string $region = NULL): string;
  }
  
  function intltz_get_windows_id($id) { return IntlTimeZone::getWindowsID($id); }
  function intltz_get_id_for_windows_id($winid, $region = NULL) { return IntlTimeZone::getIDForWindowsID($winid, $region); }

===== Proposed PHP Version(s) =====
PHP 7.1

===== Vote =====
Simple 50% +1 majority: "Should this APIs be added to IntlTimeZone?"

<doodle title="Approve get-windows-id RFC and merge oatch into master?" auth="pollita" voteType="single" closed="true">
   * Yes
   * No
</doodle>

===== Patches and Tests =====
https://github.com/php/php-src/compare/master...sgolemon:intl.timezone.52-updates

===== Commits =====
https://github.com/php/php-src/commit/a9568d54858912cd741df183f8eee2493361de7f