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The DateTimeZone class

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

Introduzione

Representation of time zone.

Sommario della classe

class DateTimeZone {

/* Costanti */

public const int AFRICA;

public const int AMERICA;

public const int ANTARCTICA;

public const int ARCTIC;

public const int ASIA;

public const int ATLANTIC;

public const int AUSTRALIA;

public const int EUROPE;

public const int INDIAN;

public const int PACIFIC;

public const int UTC;

public const int ALL;

public const int ALL_WITH_BC;

public const int PER_COUNTRY;

/* Metodi */

public __construct(string $timezone)

public getLocation(): array|false

public getName(): string

public getOffset(DateTimeInterface $datetime): int

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

public static listAbbreviations(): array

public static listIdentifiers(int $timezoneGroup = DateTimeZone::ALL, ?string $countryCode = null): array

}

Costanti predefinite

DateTimeZone::AFRICA: Africa time zones.
DateTimeZone::AMERICA: America time zones.
DateTimeZone::ANTARCTICA: Antarctica time zones.
DateTimeZone::ARCTIC: Arctic time zones.
DateTimeZone::ASIA: Asia time zones.
DateTimeZone::ATLANTIC: Atlantic time zones.
DateTimeZone::AUSTRALIA: Australia time zones.
DateTimeZone::EUROPE: Europe time zones.
DateTimeZone::INDIAN: Indian time zones.
DateTimeZone::PACIFIC: Pacific time zones.
DateTimeZone::UTC: UTC time zones.
DateTimeZone::ALL: All time zones.
DateTimeZone::ALL_WITH_BC: All time zones including backwards compatible.
DateTimeZone::PER_COUNTRY: Time zones per country.

Indice dei contenuti

DateTimeZone::__construct — Creates new DateTimeZone object
DateTimeZone::getLocation — Returns location information for a timezone
DateTimeZone::getName — Returns the name of the timezone
DateTimeZone::getOffset — Returns the timezone offset from GMT
DateTimeZone::getTransitions — Returns all transitions for the timezone
DateTimeZone::listAbbreviations — Returns associative array containing dst, offset and the timezone name
DateTimeZone::listIdentifiers — Returns a numerically indexed array containing all defined timezone identifiers

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User Contributed Notes 2 notes

down

bradm at inmotionhosting dot com ¶

6 years ago


Seems like a significant differences between php 5.3 and 5.6:

php -r "new DateTimeZone( '-0400' );"
-------------                        --------------
- PHP 5.3.3 -                        - PHP 5.6.30 -
-------------                        --------------
DateTimeZone::__construct():        Works as expected.
Unknown or bad timezone (-0400)

php -r '$tz = new DateTimeZone( "EDT" ); echo $tz->getName();';
-------------                        --------------
- PHP 5.3.3 -                        - PHP 5.6.30 -
-------------                        --------------
America/New_York                    EDT

php -r '$tz = new DateTimeZone( "EDT" ); echo $tz->getName();';
-------------                        --------------
- PHP 5.3.3 -                        - PHP 5.6.30 -
-------------                        --------------
DateTimeZone Object                DateTimeZone Object
(                                    (
)                                    [timezone_type] => 2
                                    [timezone] => EDT
                                    )

down

-38

ryan at amst dot com ¶

8 years ago


It seems like as of PHP 5.5, creating a new DateTimeZone with a string like 'EDT' will cause DateTimeZone::getName() to return 'EDT' whereas prior to 5.5 it would convert it would have returned 'America/New_York'

This is of particular note when using a DateTimeZone object to change the timezone on a DateTime object.  Using a DateTimeZone object when set as shown above will cause the conversion to be wrong without throwing any errors.

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