DateTimeZone::getTransitions

    timezone_transitions_get

    (PHP 5 >= 5.2.0, PHP 7, PHP 8)

    DateTimeZone::getTransitions -- timezone_transitions_get — Returns all transitions for the timezone

    Description

    Object-oriented style

    publicDateTimeZone::getTransitions(int$timestampBegin = PHP_INT_MIN, int$timestampEnd = PHP_INT_MAX): array|false

    Procedural style

    timezone_transitions_get(DateTimeZone$object, int$timestampBegin = PHP_INT_MIN, int$timestampEnd = PHP_INT_MAX): array|false

    Parameters

    object

    Procedural style only: A DateTimeZone object returned by timezone_open()

    timestampBegin

    Begin timestamp.

    timestampEnd

    End timestamp.

    Return Values

    Returns a numerically indexed array of transition arrays on success, or false on failure. DateTimeZone objects wrapping type 1 (UTC offsets) and type 2 (abbreviations) do not contain any transitions, and calling this method on them will return false.

    If timestampBegin is given, the first entry in the returned array will contain a transition element at the time of timestampBegin.

    Transition Array Structure
    KeyTypeDescription
    tsintUnix timestamp
    timestringDateTimeInterface::ISO8601_EXPANDED (PHP 8.2 and later), or DateTimeInterface::ISO8601 (PHP 8.1 and lower) time string
    offsetintOffset to UTC in seconds
    isdstboolWhether daylight saving time is active
    abbrstringTimezone abbreviation

    Examples

    Example #1 A timezone_transitions_get() example

    <?php
    $timezone     = new DateTimeZone("Europe/London");
    $transitions = $timezone->getTransitions();
    print_r(array_slice($transitions, 0, 3));
    ?>

    The above example will output something similar to:

    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 ) )

    Example #2 A timezone_transitions_get() example with timestampBegin set

    <?php
    $timezone     = new DateTimeZone("Europe/London");
    $transitions = $timezone->getTransitions(time());
    print_r(array_slice($transitions, 0, 3));
    ?>

    The above example will output something similar to:

    Array ( [0] => Array ( [ts] => 1654184161 [time] => 2022-06-02T15:36:01+0000 [offset] => 3600 [isdst] => 1 [abbr] => BST ) [1] => Array ( [ts] => 1667091600 [time] => 2022-10-30T01:00:00+0000 [offset] => 0 [isdst] => [abbr] => GMT ) [2] => Array ( [ts] => 1679792400 [time] => 2023-03-26T01:00:00+0000 [offset] => 3600 [isdst] => 1 [abbr] => BST ) )
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