DateTimeZone::listIdentifiers

timezone_identifiers_list

(PHP 5 >= 5.2.0, PHP 7)

DateTimeZone::listIdentifiers -- timezone_identifiers_list — Returns a numerically indexed array containing all defined timezone identifiers

Object oriented style

public static DateTimeZone::listIdentifiers ([ int $timezoneGroup = DateTimeZone::ALL [, string $countryCode = NULL ]] ) : array|false

Procedural style

timezone_identifiers_list ([ int $timezoneGroup = DateTimeZone::ALL [, string $countryCode = NULL ]] ) : array|false

timezoneGroup: One of the DateTimeZone class constants (or a combination).
countryCode: A two-letter ISO 3166-1 compatible country code.

Note:
This option is only used when timezoneGroup is set to DateTimeZone::PER_COUNTRY.

Returns array on success or FALSE on failure.

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

The above example will output something similar to:

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