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DateTimeZone::listIdentifiers

timezone_identifiers_list

(PHP 5 >= 5.2.0, PHP 7)

DateTimeZone::listIdentifiers -- timezone_identifiers_listRetorna um array numericamente indexado contendo todos os indenticadores de fuso horário

Descrição

Estilo orientado à objeto

public static DateTimeZone::listIdentifiers ([ int $what = DateTimeZone::ALL [, string $country = NULL ]] ) : array

Estilo procedural

timezone_identifiers_list ([ int $what = DateTimeZone::ALL [, string $country = NULL ]] ) : array

Parâmetros

what

Uma das constantes da classe DateTimeZone.

country

Um código de país, com duas letras, compatível com a ISO 3166-1.

Nota: Esta opção é utilizada somente quando o parâmetro what é configurado como DateTimeZone::PER_COUNTRY.

Valor Retornado

Retorna um array em caso de sucesso ou FALSE em caso de falha.

Changelog

Versão Descrição
5.3.0 Adicionado os parâmetros opcionais what e country.

Exemplos

Exemplo #1 Exemplo do método timezone_identifiers_list()

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

O exemplo acima irá imprimir algo similar à:

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

Veja Também

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User Contributed Notes 3 notes

up
21
kalle at example dot com
4 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 ||.
up
1
repohelga at example dot com
1 year 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.
up
-1
PHP Guru
5 months 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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