DateTimeZone::listIdentifiers

timezone_identifiers_list

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

DateTimeZone::listIdentifiers -- timezone_identifiers_list — Retourne un tableau numérique contenant tous les identifiants de fuseaux horaires définis

Description

Style orienté objet

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

Style procédural

timezone_identifiers_list(int $timezoneGroup = DateTimeZone::ALL, ?string $countryCode = null): array

Liste de paramètres

timezoneGroup: Une (ou une combinaison) des constantes de classe DateTimeZone.
countryCode: Un code de pays en deux lettres (en majuscule), compatible ISO 3166-1.

Note: Cette option n'est disponible que lorsque le paramètre timezoneGroup prend la valeur de DateTimeZone::PER_COUNTRY.

Valeurs de retour

Retourne le tableau des identificateurs des fuseaux horaires. Seuls les éléments non obsolètes sont retournés. Pour tout obtenir, y compris les identifiants de fuseau horaire obsolètes, utilisez DateTimeZone::ALL_WITH_BC comme valeur pour timezoneGroup.

Historique

Version	Description
8.0.0	Antérieur à cette version, `false` était retourné en cas d'échec.
7.1.0	`countryCode` est désormais nullable.

Exemples

Exemple #1 Exemple avec DateTimeZone::listIdentifiers()

<?php
$timezone_identifiers = DateTimeZone::listIdentifiers();
for ($i=0; $i < 5; $i++) {
    echo "$timezone_identifiers[$i]\n";
}
?>

Résultat de l'exemple ci-dessus est similaire à :

Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara

Exemple #2 Listing identifiers for a specific region

<?php
$timezone_identifiers = DateTimeZone::listIdentifiers( DateTimeZone::ASIA );
for ($i=0; $i < 5; $i++) {
    echo "$timezone_identifiers[$i]\n";
}
?>

Résultat de l'exemple ci-dessus est similaire à :

Asia/Aden
Asia/Almaty
Asia/Amman
Asia/Anadyr
Asia/Aqtau

Exemple #3 Lister les identifiants de plusieurs régions

<?php
$timezone_identifiers = DateTimeZone::listIdentifiers( DateTimeZone::ASIA | DateTimeZone::PACIFIC );
echo join( ', ', $timezone_identifiers );
?>

Résultat de l'exemple ci-dessus est similaire à :

Asia/Aden, Asia/Almaty, Asia/Amman, Asia/Anadyr, Asia/Aqtau, Asia/Aqtobe,
Asia/Ashgabat, Asia/Atyrau, Asia/Baghdad, Asia/Bahrain, Asia/Baku,
Asia/Bangkok, Asia/Barnaul, Asia/Beirut, Asia/Bishkek, Asia/Brunei,
Asia/Chita, Asia/Choibalsan, Asia/Colombo, Asia/Damascus, Asia/Dhaka,
Asia/Dili, Asia/Dubai, Asia/Dushanbe, Asia/Famagusta, Asia/Gaza, Asia/Hebron,
Asia/Ho_Chi_Minh, Asia/Hong_Kong, Asia/Hovd, Asia/Irkutsk, Asia/Jakarta,
Asia/Jayapura, Asia/Jerusalem, Asia/Kabul, Asia/Kamchatka, Asia/Karachi,
Asia/Kathmandu, Asia/Khandyga, Asia/Kolkata, Asia/Krasnoyarsk,
Asia/Kuala_Lumpur, Asia/Kuching, Asia/Kuwait, Asia/Macau, Asia/Magadan,
Asia/Makassar, Asia/Manila, Asia/Muscat, Asia/Nicosia, Asia/Novokuznetsk,
Asia/Novosibirsk, Asia/Omsk, Asia/Oral, Asia/Phnom_Penh, Asia/Pontianak,
Asia/Pyongyang, Asia/Qatar, Asia/Qostanay, Asia/Qyzylorda, Asia/Riyadh,
Asia/Sakhalin, Asia/Samarkand, Asia/Seoul, Asia/Shanghai, Asia/Singapore,
Asia/Srednekolymsk, Asia/Taipei, Asia/Tashkent, Asia/Tbilisi, Asia/Tehran,
Asia/Thimphu, Asia/Tokyo, Asia/Tomsk, Asia/Ulaanbaatar, Asia/Urumqi,
Asia/Ust-Nera, Asia/Vientiane, Asia/Vladivostok, Asia/Yakutsk, Asia/Yangon,
Asia/Yekaterinburg, Asia/Yerevan, Pacific/Apia, Pacific/Auckland,
Pacific/Bougainville, Pacific/Chatham, Pacific/Chuuk, Pacific/Easter,
Pacific/Efate, Pacific/Fakaofo, Pacific/Fiji, Pacific/Funafuti,
Pacific/Galapagos, Pacific/Gambier, Pacific/Guadalcanal, Pacific/Guam,
Pacific/Honolulu, Pacific/Kanton, Pacific/Kiritimati, Pacific/Kosrae,
Pacific/Kwajalein, Pacific/Majuro, Pacific/Marquesas, Pacific/Midway,
Pacific/Nauru, Pacific/Niue, Pacific/Norfolk, Pacific/Noumea,
Pacific/Pago_Pago, Pacific/Palau, Pacific/Pitcairn, Pacific/Pohnpei,
Pacific/Port_Moresby, Pacific/Rarotonga, Pacific/Saipan, Pacific/Tahiti,
Pacific/Tarawa, Pacific/Tongatapu, Pacific/Wake, Pacific/Wallis

Exemple #4 Lister les identifiants d'un seul pays

<?php
$timezone_identifiers = DateTimeZone::listIdentifiers( DateTimeZone::PER_COUNTRY, "UA" );
foreach( $timezone_identifiers as $identifier ) {
    echo "$identifier\n";
}
?>

Résultat de l'exemple ci-dessus est similaire à :

Europe/Kyiv
Europe/Simferopol
Europe/Uzhgorod
Europe/Zaporozhye

Voir aussi

timezone_abbreviations_list() - Alias de DateTimeZone::listAbbreviations

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User Contributed Notes 3 notes

down

kalle at example dot com ¶

8 years ago


Even though the manual currently says that the first parameter has to be "One of DateTimeZone class constants", you may actually combine these constants:

<?php
  $a = DateTimeZone::listIdentifiers(DateTimeZone::AFRICA); //gives africa time zones
  $b = DateTimeZone::listIdentifiers(DateTimeZone::AMERICA); //gives american time zones
  $c = DateTimeZone::listIdentifiers(DateTimeZone::AFRICA | DateTimeZone::AMERICA); //gives both african and american time zones
?>

Be sure to use |, not ||.

down

repohelga at example dot com ¶

4 years ago


Beware that the ISO 3166-1 country code passed to second parameter $country has to be in capital letters (eg. 'US', 'DE', ...).
Passing the country code in lower case like 'us' or 'de' will not return the failure-value false but just an empty array.

down

PHP Guru ¶

4 years ago


In tests that I have done, not all time zones are returned by this function. For example the following aliases Asia/Katmandu and Asia/Calcutta are not returned, but these time zones are supported in tests that I have done such as the following:

<?php
echo date_default_timezone_set('Asia/Calcutta');
?>

result:

Fri, 19 Jun 2020 03:26:52 +0530

UTC+05:30 is the correct time zone for Calcutta.

Asia/Katmandu and Asia/Calcutta are aliases for Asia/Kathmandu and Asia/Kolkata respectively (which can be found in the list)

Hopefully this helps some people because without these time zones appearing in the list one might not know that they are supported or even exist.

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