Datum/Uhrzeit Funktionen
PHP-Handbuch

date_default_timezone_get

Gets the default timezone used by all date/time functions in a script

Beschreibung

string date_default_timezone_get ( void )

In order of preference, this function returns the default timezone by:

  • Reading the timezone set using the date_default_timezone_set function (if any)

  • Prior to PHP 5.4.0 only: Reading the TZ environment variable (if non empty)

  • Reading the value of the date.timezone ini option (if set)

  • Prior to PHP 5.4.0 only: Querying the host operating system (if supported and allowed by the OS). This uses an algorithm that has to guess the timezone. This is by no means going to work correctly for every situation. A warning is shown when this stage is reached. Do not rely on it to be guessed correctly, and set date.timezone to the correct timezone instead.

If none of the above succeed, date_default_timezone_get will return a default timezone of UTC.

Rückgabewerte

Returns a string.

Changelog

Version Beschreibung
5.4.0 The TZ environment variable is no longer used to guess the timezone.
5.4.0 The timezone is no longer guessed from information available through the operating system as the guessed timezone can not be relied on.

Beispiele

Beispiel #1 Getting the default timezone

<?php
date_default_timezone_set('Europe/London');

if (date_default_timezone_get()) {
    echo 'date_default_timezone_set: ' . date_default_timezone_get() . '<br />';
}

if (ini_get('date.timezone')) {
    echo 'date.timezone: ' . ini_get('date.timezone');
}

?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

date_default_timezone_set: Europe/London
date.timezone: Europe/London

Beispiel #2 Getting the abbreviation of a timezone

<?php
date_default_timezone_set('America/Los_Angeles');
echo date_default_timezone_get() . ' => ' . date('e') . ' => ' . date('T');
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

America/Los_Angeles => America/Los_Angeles => PST

Siehe auch