PHP Doku:: Returns all transitions for the timezone - datetimezone.gettransitions.html

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The DateTimeZone class

<<DateTimeZone::getOffset

DateTimeZone::listAbbreviations>>

DateTimeZone::getTransitions

(PHP 5 >= 5.2.0)

DateTimeZone::getTransitionsReturns all transitions for the timezone

Beschreibung

Objektorientierter Stil

public array DateTimeZone::getTransitions ([ int $timestamp_begin [, int $timestamp_end ]] )

Prozeduraler Stil

array timezone_transitions_get ( DateTimeZone $object [, int $timestamp_begin [, int $timestamp_end ]] )

Parameter-Liste

object

Nur bei prozeduralem Aufruf: Ein von date_create() zurückgegebens DateTimeZone Objekt.

timestamp_begin

Begin timestamp.

timestamp_end

End timestamp.

Rückgabewerte

Returns numerically indexed array containing associative array with all transitions on successIm Fehlerfall wird FALSE zurückgegeben..

Changelog

Version Beschreibung
5.3.0 The optional timestamp_begin and timestamp_end were added.

Beispiele

Beispiel #1 A timezone_transitions_get() example

<?php
$timezone 
= new DateTimeZone("Europe/London");
$transitions $timezone->getTransitions();
print_r(array_slice($transitions03));
?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

Array
(
    [0] => Array
        (
            [ts] => -9223372036854775808
            [time] => -292277022657-01-27T08:29:52+0000
            [offset] => 3600
            [isdst] => 1
            [abbr] => BST
        )

    [1] => Array
        (
            [ts] => -1691964000
            [time] => 1916-05-21T02:00:00+0000
            [offset] => 3600
            [isdst] => 1
            [abbr] => BST
        )

    [2] => Array
        (
            [ts] => -1680472800
            [time] => 1916-10-01T02:00:00+0000
            [offset] => 0
            [isdst] => 
            [abbr] => GMT
        )

)


Ein BenutzerBeitrag:
- Beiträge aktualisieren...
scotts
5.03.2010 20:19
Getting a timezone's offset and other data at a specified point in time (now, for example) using the new PHP5.3 parameters:

<?php
$theTime
= time(); # specific date/time we're checking, in epoch seconds.

$tz = new DateTimeZone('America/Los_Angeles');
$transition = $tz-getTransitions($theTime,$theTime);

# only one array should be returned into $transition. Now get the data:
$offset = $transition[0]['offset'];
$abbr = $transition[0]['abbr'];
?>

Before PHP5.3, you'd have to loop through all of the Transitions up until the current point in time, which would be a very inefficient process.



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