function &getClientTZ()
{
// if SITE_TIME_ZONE is present, use it, otherwise, best guess as to server's local time zone
if (defined('SITE_TIME_ZONE') && Date_TimeZone::isValidID(SITE_TIME_ZONE)) {
$client_tz = new Date_TimeZone(SITE_TIME_ZONE);
} else {
$client_tz =& Date_TimeZone::getDefault();
}
return $client_tz;
}
/**
* Sets the system default time zone to the time zone in $id
*
* Sets the system default time zone to the time zone in $id
*
* @access public
* @param string $id the time zone id to use
*/
function setDefault($id)
{
if (Date_TimeZone::isValidID($id)) {
$GLOBALS['_DATE_TIMEZONE_DEFAULT'] = $id;
}
}
/**
* Converts this date to a new time zone, given a valid time zone ID
*
* Converts this date to a new time zone, given a valid time zone ID
* WARNING: This may not work correctly if your system does not allow
* putenv() or if localtime() does not work in your environment. See
* Date::TimeZone::inDaylightTime() for more information.
*
* @access public
* @param string id a time zone id
*/
function convertTZbyID($id)
{
if (Date_TimeZone::isValidID($id)) {
$tz = new Date_TimeZone($id);
} else {
$tz = Date_TimeZone::getDefault();
}
$this->convertTZ($tz);
}
/**
* Sets the system default time zone to the time zone in $id
*
* Sets the system default time zone to the time zone in $id
*
* @access public
* @param string $id the time zone id to use
*/
function setDefault($id)
{
global $_DATE_TIMEZONE_DEFAULT;
if (Date_TimeZone::isValidID($id)) {
$_DATE_TIMEZONE_DEFAULT = $id;
}
}
/**
* Converts this date to a new time zone, given a valid time zone ID
*
* Previously this might not have worked correctly if your system did
* not allow putenv() or if localtime() does not work in your
* environment, but this implementation is no longer used.
*
* @param string $ps_id a valid time zone id, e.g. 'Europe/London'
*
* @return void
* @access public
* @see Date::setTZByID(), Date_TimeZone::isValidID(),
* Date_TimeZone::Date_TimeZone()
*/
function convertTZByID($ps_id)
{
if (!Date_TimeZone::isValidID($ps_id)) {
return PEAR::raiseError("Invalid time zone ID '{$ps_id}'", DATE_ERROR_INVALIDTIMEZONE);
}
$res = $this->convertTZ(new Date_TimeZone($ps_id));
if (PEAR::isError($res)) {
return $res;
}
}
/**
* Is this time zone equivalent to another
*
* Tests to see if this time zone is equivalent to a given time zone object.
* Equivalence in this context consists in the two time zones having:
*
* an equal offset from UTC in both standard and Summer time (if
* the time zones observe Summer time)
* the same Summer time start and end rules, that is, the two time zones
* must switch from standard time to Summer time, and vice versa, on the
* same day and at the same time
*
* @param object $pm_tz the Date_TimeZone object to test, or a valid time
* zone ID
*
* @return bool true if this time zone is equivalent to the supplied
* time zone
* @access public
*/
function isEquivalent($pm_tz)
{
if (is_a($pm_tz, "Date_TimeZone")) {
if ($pm_tz->getID() == $this->id) {
return true;
}
} else {
if (!Date_TimeZone::isValidID($pm_tz)) {
return PEAR::raiseError("Invalid time zone ID '{$pm_tz}'", DATE_ERROR_INVALIDTIMEZONE);
}
if ($pm_tz == $this->id) {
return true;
}
$pm_tz = new Date_TimeZone($pm_tz);
}
if ($this->getRawOffset() == $pm_tz->getRawOffset() && $this->hasDaylightTime() == $pm_tz->hasDaylightTime() && $this->getDSTSavings() == $pm_tz->getDSTSavings() && $this->getSummerTimeStartMonth() == $pm_tz->getSummerTimeStartMonth() && $this->getSummerTimeStartDay() == $pm_tz->getSummerTimeStartDay() && $this->getSummerTimeStartTime() == $pm_tz->getSummerTimeStartTime() && $this->getSummerTimeEndMonth() == $pm_tz->getSummerTimeEndMonth() && $this->getSummerTimeEndDay() == $pm_tz->getSummerTimeEndDay() && $this->getSummerTimeEndTime() == $pm_tz->getSummerTimeEndTime()) {
return true;
} else {
return false;
}
}
/**
* Sets the system default time zone to the time zone in $id
*
* Sets the system default time zone to the time zone in $id
*
* @access public
* @param string $id the time zone id to use
*/
function setDefault($id)
{
global $default;
if (Date_TimeZone::isValidID($id)) {
$default = $id;
}
}
function get_display_timezone($_user = false)
{
global $prefs, $user;
if ($_user === false || $_user == $user) {
// If the requested timezone is the current user timezone
$tz = $prefs['display_timezone'];
} elseif ($_user) {
// ... else, get the user timezone preferences from DB
$tz = $this->get_user_preference($_user, 'display_timezone');
if (!Date_TimeZone::isValidID($tz)) {
$tz = $prefs['server_timezone'];
}
}
return $tz;
}
/**
* Sets the system default time zone to the time zone in $id
*
* @access public
* @param string $id the time zone id to use
*/
public static function setDefault($id)
{
global $default;
if ($res = Date_TimeZone::isValidID($id)) {
$default = $id;
}
}
$prefs['style'] = $prefs['theme'];
}
} else {
$allowMsgs = 'n';
}
if (isset($_SERVER['REMOTE_ADDR'])) {
$IP = $_SERVER['REMOTE_ADDR'];
$smarty->assign('IP', $IP);
}
if ($prefs['users_prefs_display_timezone'] == 'Site' || isset($user_preferences[$user]['display_timezone']) && $user_preferences[$user]['display_timezone'] == 'Site') {
// Everybody stays in the time zone of the server
$prefs['display_timezone'] = $prefs['server_timezone'];
} elseif (!isset($user_preferences[$user]['display_timezone']) || $user_preferences[$user]['display_timezone'] == '') {
// If the display timezone is not known ...
if (isset($_COOKIE['local_tz']) && eregi('[A-Z]', $_COOKIE['local_tz'])) {
// ... we try to use the timezone detected by javascript and stored in cookies
if ($_COOKIE['local_tz'] == 'CEST' || $_COOKIE['local_tz'] == 'HAEC') {
// CEST (and HAEC, returned by Safari on Mac) is not recognized as a DST timezone (with daylightsavings) by PEAR Date
// ... So use one equivalent timezone name
$prefs['display_timezone'] = 'Europe/Paris';
} else {
$prefs['display_timezone'] = $_COOKIE['local_tz'];
}
if (!Date_TimeZone::isValidID($prefs['display_timezone'])) {
$prefs['display_timezone'] = $prefs['server_timezone'];
}
} else {
// ... and we fallback to the server timezone if the cookie value is not available
$prefs['display_timezone'] = $prefs['server_timezone'];
}
}
/**
* Sets the time zone of this date with the given time zone id
*
* Sets the time zone of this date with the given
* time zone id, or to the system default if the
* given id is invalid. Does not alter the date/time,
* only assigns a new time zone. For conversion, use
* convertTZ().
*
* @access public
* @param string id a time zone id
*/
function setTZbyID($id)
{
if (Date_TimeZone::isValidID($id)) {
$this->tz = new Date_TimeZone($id);
} else {
$this->tz = Date_TimeZone::getDefault();
}
}
/**
* Converts this date to a new time zone, given a valid time zone ID
*
* Converts this date to a new time zone, given a valid time zone ID
* WARNING: This may not work correctly if your system does not allow
* putenv() or if localtime() does not work in your environment. See
* Date::TimeZone::inDaylightTime() for more information.
*
* @access public
* @param string id a time zone id
*/
function convertTZbyID($id)
{
if (Date_TimeZone::isValidID($id)) {
$tz = new Date_TimeZone($id);
} else {
$timezone = new Date_TimeZone('UTC');
$tz = $timezone->getDefault();
}
$this->convertTZ($tz);
}
